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20.06.2019
06:24 Yahoo ScienceSailing among the stars: how photons could revolutionize space flight

The idea might sounds crazy: propelling a craft through the vacuum of space with no engine, no fuel, and no solar panels, but instead harnessing the momentum of packets of light energy known as photons -- in this case from our Sun. The spacecraft to be launched on Monday, called LightSail 2, was developed by the Planetary Society, a US organization that promotes space exploration which was co-founded by the legendary astronomer Carl Sagan in 1980. "In the 1600s, Johannes Kepler talked about sailing among the stars," Bill Nye, the chief executive of the Planetary Society, told AFP.

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01:20 ScienceDaily.comAstronomers uncover first polarized radio signals from gamma-ray burst

An international team of astronomers has captured the first-ever polarized radio waves from a distant cosmic explosion.

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19.06.2019
20:18 Nature.ComMachine learning in electronic-quantum-matter imaging experiments

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20:10 Phys.orgPerfect quantum portal emerges at exotic interface

Researchers at the University of Maryland have captured the most direct evidence to date of a quantum quirk that allows particles to tunnel through a barrier like it's not even there. The result, featured on the cover of the June 20, 2019 issue of the journal Nature, may enable engineers to design more uniform components for future quantum computers, quantum sensors and other devices.

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18:21 ScienceDaily.comResearchers find quantum gravity has no symmetry

Using holography, researchers have found when gravity is combined with quantum mechanics, symmetry is not possible.

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18:03 Phys.orgA sound idea: A step towards quantum computing

A team at the University of Tsukuba studied a novel process for creating coherent lattice waves inside silicon crystals using ultrashort laser pulses. Using theoretical calculations combined with experimental results that were obtained at the University of Pittsburgh, they were able to show that coherent vibrational signals could be maintained inside the samples. This research may lead to quantum computers based on existing silicon devices that can rapidly perform tasks out of the reach of even the fastest supercomputers now available.

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17:58 ScienceDaily.comElectrons take alternative route to prevent plant stress

When plants absorb excess light energy during photosynthesis, reactive oxygen species are produced, potentially causing oxidative stress that damages important structures. Plants can suppress the production of reactive oxygen species by oxidizing P700 (the reaction center chlorophyll in photosystem I). A new study has revealed more about this vital process.

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17:58 ScienceDaily.comAstronomers make first detection of polarized radio waves in Gamma Ray Burst jets

Astronomers detect polarized radio waves from a gamma-ray burst for the first time. Polarization signature reveals magnetic fields in explosions to be much more patchy and tangled than first thought. Combining the observations with data from X-ray and visible light telescopes is helping unravel the mysteries of the universe's most powerful explosions.

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17:51 Phys.orgSecure quantum communications in the microwave range for the first time

Mikel Sanz, of the Physical Chemistry Department of UPV/EHU, leads the theoretical group for an experiment published by the prestigious journal, Nature Communications. The experiment has managed to prepare a remote quantum state; i.e., absolutely secure communication was established with another, physically separated quantum computer for the first time in the microwave regime. This new technology may bring about a revolution in the next few years.

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17:51 Phys.orgAstronomers make first detection of polarised radio waves in Gamma Ray Burst jets

Good fortune and cutting-edge scientific equipment have allowed scientists to observe a Gamma Ray Burst jet with a radio telescope and detect the polarisation of radio waves within it for the first time—moving us closer to an understanding of what causes the universe's most powerful explosions.

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17:42 QuantaMagazine.orgHow to Turn a Quantum Computer Into the Ultimate Randomness Generator

Pure, verifiable randomness is hard to come by. Two proposals show how to make quantum computers into randomness factories.

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17:39 Nanowerk.comAstronomers make first detection of polarised radio waves in Gamma Ray Burst jets

The polarisation signature reveals magnetic fields in the universe's most powerful explosions to be much more patchy and tangled than first thought.

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17:09 ScienceDaily.comA sound idea: a step towards quantum computing

Researchers have developed a new method for using lasers to create tiny lattice waves inside silicon crystals that can encode quantum information. By taking advantage of existing silicon hardware, this work may greatly reduce the cost of future quantum computers for cryptographic and optimization applications.

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16:38 Phys.orgIon beams and atom smashers: secrets of moon rocks

Moon samples collected by the Apollo astronauts a half-century ago hold answers to questions that weren't even on scientists' minds at the time, as new technological tools provide insight into some of the oldest mysteries about the moon, the earth and the solar system.

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16:38 Phys.orgElectrons take alternative route to prevent plant stress

Plants are susceptible to stress, and with the global impact of climate change and humanity's growing demand for food, it's crucial to understand what causes plant stress and stress tolerance. When plants absorb excess light energy during photosynthesis, reactive oxygen species are produced, potentially causing oxidative stress that damages important structures. Plants can suppress the production of reactive oxygen species by oxidizing P700 (the reaction center chlorophyll in photosystem I). A new study has revealed more about this vital process: the cyclic electron flow induced by P700 oxidation is an electric charge recombination occurring in photosystem I. These findings were published on June 5 in Plants.

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14:44 Space.comSecret of the Sun's Early Spin May Be Buried in Moon Rock

NASA may discover the secrets of the sun's early history in an unlikely location: Earth's moon.

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14:26 LiveScience.comVoracious Black Holes Could Feed Alien Life with Radiation Blitzes

Black holes are engines of destruction on a cosmic scale, but they may also be the bringers of life.

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13:51 Technology.orgNASA’s Fermi mission reveals record-setting gamma-ray bursts

For 10 years, NASA’s Fermi Gamma-ray Space Telescope has scanned the sky for gamma-ray bursts (GRBs), the universe’s most luminous

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13:45 ScientificAmerican.ComThe Quantum Internet Is Emerging, One Experiment at a Time

Breakthrough demonstrations using defective diamonds, high-flying drones, laser-bathed crystals and other exotica suggest practical, unhackable quantum networks are within reach -- Read more on ScientificAmerican.com

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01:53 ScienceDaily.comQuantum music to my ears

Researchers have applied new atomic-sensing capabilities to detect and record music.

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18.06.2019
22:33 Phys.orgQuantum music to my ears

It sounds like an old-school vinyl record, but the distinctive crackle in the music streamed into Chris Holloway's laboratory is atomic in origin. The group at the National Institute for Standards and Technology, Boulder, Colorado, spent a long six years finding a way to directly measure electric fields using atoms, so who can blame them for then having a little fun with their new technology?

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21:20 Physics.Aps.orgSynopsis: Nonlinear Forces Explain Elastomer Ridges

A new theory that incorporates nonlinear properties of rubber-like materials correctly describes the shape of the ridge that forms when the material is strongly deformed by an object.
[Physics] Published Tue Jun 18, 2019

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18:18 Space.comBreaks in the Perfect Symmetry of the Universe Could Be a Window Into Completely New Physics

If this fundamental symmetry of the universe doesn’t hold, it could break open new physics.

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17:52 QuantaMagazine.orgA New Law to Describe Quantum Computing’s Rise?

Neven’s law states that quantum computers are improving at a “doubly exponential” rate. If it holds, quantum supremacy is around the corner.

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17:49 Phys.orgA device emerges from the fusion of IGZO and ferroelectric-HfO2

As a part of JST PRESTO program, Associate professor Masaharu Kobayashi, Institute of Industrial Science, the University of Tokyo, has developed a ferroelectric FET (FeFET) with ferroelectric-HfO2 and ultrathin IGZO channel. Nearly ideal subthreshold swing (SS) and mobility higher than poly-silicon channel have been demonstrated.

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17:37 Phys.orgeROSITA – the hunt for dark energy begins

On 21 June 2019 the Spektrum-Röntgen-Gamma (Spektr-RG / SRG) spacecraft will be launched from the Kazakh steppe, marking the start of an exciting journey. SRG will be carrying the German Extended ROentgen Survey with an Imaging Telescope Array (eROSITA) X-ray telescope and its Russian ART-XC partner instrument. A Proton rocket will carry the spacecraft from the Baikonur Cosmodrome towards its destination—the second Lagrange point of the Sun-Earth system, L2, which is 1.5 million kilometres from Earth.

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17:13 Phys.orgHow a walk through CERN's corridors helped lead to the discovery of the gluon 40 years ago

Forty years ago, in 1979, experiments at the DESY laboratory in Germany provided the first direct proof of the existence of gluons—the carriers of the strong force that "glue" quarks into protons, neutrons and other particles known collectively as hadrons. This discovery was a milestone in the history of particle physics, as it helped establish the theory of the strong force, known as quantum chromodynamics.

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16:36 Phys.orgStudy sheds light on gauge invariance in ultrastrong-coupling cavity quantum electrodynamics

In quantum electrodynamics, the choice of gauge (i.e. specific mathematical formalism used to regulate degrees of freedom) can greatly influence the form of light-matter interactions. Interestingly, however, the "gauge invariance" principle implies that all physical results should be independent from a researcher's choice of gauge. The quantum Rabi model, which is often used to describe light-matter interactions in cavity-QED, has been found to violate this principle in the presence of ultrastrong light-matter coupling, and past studies have attributed this failure to the finite-level truncation of the matter system.

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14:23 Phys.orgSupercomputers aid in novel simulations of gamma ray generation research

While intense magnetic fields are naturally generated by neutron stars, researchers have been striving to achieve similar results for many years. UC San Diego mechanical and aerospace engineering graduate student Tao Wang recently demonstrated how an extremely strong magnetic field, similar to that on the surface of a neutron star, can be not only generated but also detected using an X-ray laser inside a solid material.

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13:05 Photonics.comQuantum Dot Microscope Can Measure Electric Surface Potentials of Single Atoms

A new scanning quantum dot microscopy method can measure the electric potential of a sample at atomic accuracy. It was developed by a team from Forschungszentrum Jülich, working with researchers from two other institutions. The new technique has potential application for chip manufacturing and the characterization of biomolecules. A quantum dot was attached to the tip of an atomic force microscope (AFM) to serve as a noncontact scanning probe. The quantum dot was so small that individual electrons from the tip of the AFM could be attached to it in a controlled manner. The quantum dot sensor and the joint electrostatic screening by tip and surface enabled quantitative surface potential imaging across all length scales down to...

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17.06.2019
15:58 Phys.orgQuantum physics experiment shows Heisenberg was right about uncertainty, in a certain sense

The word uncertainty is used a lot in quantum mechanics. One school of thought is that this means there's something out there in the world that we are uncertain about. But most physicists believe nature itself is uncertain.

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15:58 Phys.orgBuilding a better electron gun

The successful test of the LCLS-II electron gun (see related article) marks the culmination of an R&D effort spanning more than a decade at the Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab).

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15:35 Phys.orgResearchers capture microscopic manufacturing flaws via high-speed X-ray movies

Microscopic defects that occur in laser-based manufacturing of metal parts can lead to big problems if undetected, and the process of fixing these flaws can increase the time and cost of high-tech manufacturing. But new research into the cause of these flaws could lead to a remedy.

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14:36 AzoNano.comMechanical Properties of Short Carbon Fiber Thermoplastics Enhanced When Irradiated with Electron Beam

Polymers strengthened with carbon fibers combine low weight and strength. They also claim major green credentials as they are less resource-demanding during manufacture and use, and they are easily...

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14:18 NewScientist.ComOur galaxy's central black hole is oddly quiet – now we may know why

The supermassive black hole at the Milky Way’s centre is relatively calm and peaceful, which may be because magnetic fields keep gas and dust just out of reach

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14:00 Technology.orgQuantum—Squeezed light cuts noise

Oak Ridge National Laboratory physicists studying quantum sensing, which could impact a wide range of potential applications from

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13:24 Phys.orgQuantum simulation could help flights run on time

A powerful new form of computing could help scientists design new types of materials for nanoelectronics, allow airlines to solve complex logistical problems to ensure flights run on time, and tackle traffic jams to keep cars flowing more freely on busy roads.

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07:59 Technology.orgElectron (or ‘Hole’) Pairs May Survive Effort to Kill Superconductivity

Emergence of unusual metallic state supports role of “charge stripes” in formation of charge-carrier pairs essential to resistance-free

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16.06.2019
17:09 CosmosMagazine.comNew class of quasars offers clue to fate of our galaxy

Astronomers looking for the blue ones make an important discovery. Richard A Lovett reports.

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15.06.2019
11:40 Technology.orgHow an Atomic Clock Will Get Humans to Mars on Time

NASA navigators are helping build a future where spacecraft could safely and autonomously fly themselves to destinations like

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14.06.2019
23:40 Space.com'Cold Quasars' May Be at the End of Their Lives, But They Can Still Birth Stars

Despite signs that they are at the end of their lifetime, some galaxies may continue to produce stars, contrary to expectations.

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23:29 Space.comA NASA Atomic Clock on SpaceX's Next Falcon Heavy Will Pioneer Deep-Space Travel Tech

NASA has so many spacecraft at Mars that it's a challenge to communicate with them all, but technology being launched later this month could eliminate that problem in the future.

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22:57 ScienceDaily.comElectron (or 'hole') pairs may survive effort to kill superconductivity

The emergence of unusual metallic state supports the role of 'charge stripes' in the formation of charge-carrier pairs essential to resistance-free flow of electrical current.

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22:08 DiscoverMagazine.comStepping Up the Search for Intermediate-Mass Black Holes

Astronomers think the galaxy NGC1313 may be home to an intermediate-mass black hole. Credit: Gemini Observatory/AURA) (Inside Science) -- If you have a computer and a few spare moments, you can help search the cosmos for an elusive breed of black hole that astronomers once thought didn't exist. Black holes come in two main types: stellar-mass black holes, which generally have about 10-24 times the mass of our sun, and the much heavier variant known as supermassive black holes, which can b

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21:08 Phys.orgElectron (or 'hole') pairs may survive effort to kill superconductivity

Scientists seeking to understand the mechanism underlying superconductivity in "stripe-ordered" cuprates—copper-oxide materials with alternating areas of electric charge and magnetism—discovered an unusual metallic state when attempting to turn superconductivity off. They found that under the conditions of their experiment, even after the material loses its ability to carry electrical current with no energy loss, it retains some conductivity—and possibly the electron (or hole) pairs required for its superconducting superpower.

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20:45 CNBC top newsBrad Pitt and Laurene Powell Jobs are reportedly invested in a mysterious 'cold fusion' energy company

Brad Pitt, Laurene Powell Jobs and UK-investor Neil Woodford are all investors in North Carolina-based energy company Industrial Heat.

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20:23 FT.com TechnologyFacebook’s crucial crypto coin play

E3 clouds and consoles, meat moves, Brad Pitt and cold fusion, brain-machine gadgets

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18:34 Nature.ComLife’s innovations, the enigma of gravity, and how to feed 8 billion: Books in brief

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17:35 ScienceDaily.comImmortal quantum particles

Decay is relentless in the macroscopic world: broken objects do not fit themselves back together again. However, other laws are valid in the quantum world: new research shows that so-called quasiparticles can decay and reorganize themselves again and are thus become virtually immortal. These are good prospects for the development of durable data memories.

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17:28 LiveScience.comIs This Invisible Magnetic Field Smothering Our Nearest Supermassive Black Hole?

The monster black hole at the center of the Milky Way is eerily quiet, and now astronomers think they know why.

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17:10 CosmosMagazine.comBlack holes and The Flash: new book explores why people fear particle accelerators

A US academic finds surprising roots for a widespread public unease about the Large Hadron Collider and similar facilities. Andrew Masterson reports.

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16:40 Phys.orgA new method for the generation of intense X-ray and gamma-ray radiation

International group of researchers including scientists from Skoltech have invented a new method for the generation of intense X-ray and gamma-ray radiation based on nonlinear Compton scattering. Their results were published in Physical Review Letters.

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16:17 Phys.orgGaining a better understanding of what happens when two atoms meet

An international team of researchers has demonstrated a new way to gain a detailed understanding of what happens when two atoms meet. In their paper published in the journal Physical Review Letters, the group describes their experiments, which involved observing closely as two atoms came into contact with one another.

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15:42 AzoNano.comKanazawa University Research: Electron Beam Strengthens Recyclable Nanocomposite

Carbon fiber-enhanced thermoplastic polymer mechanical properties improve when irradiated with an electron beam, report researchers at Kanazawa University in the journal Composites Part A. Polymers...

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14:19 LiveScience.comBreaks in the Perfect Symmetry of the Universe Could Be a Window Into Completely New Physics

If this fundamental symmetry of the universe doesn’t hold, it could break open new physics.

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14:19 Phys.orgNew quantum dot microscope shows electric potentials of individual atoms

A team of researchers from Jülich in cooperation with the University of Magdeburg has developed a new method to measure the electric potentials of a sample at atomic accuracy. Using conventional methods, it was virtually impossible until now to quantitatively record the electric potentials that occur in the immediate vicinity of individual molecules or atoms. The new scanning quantum dot microscopy method, which was recently presented in the journal Nature Materials by scientists from Forschungszentrum Jülich together with partners from two other institutions, could open up new opportunities for chip manufacture or the characterization of biomolecules such as DNA.

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13:26 Photonics.comDiamond Metalens Could Improve Quantum Device Performance and Scalability

At the chemical level, diamonds are no more than carbon atoms aligned in a 3D crystal lattice. Even a diamond that looks flawless contains defects that can absorb or emit light. Small defects in diamonds called nitrogen-vacancy (NV) centers hold electron spins that can be manipulated at room temperature. Each NV center emits light that can provide information about the spin’s quantum state. Collecting light from deeply embedded NV centers usually requires a bulky optical microscope in a highly controlled laboratory environment. Now, a research group at the University of Pennsylvania has designed a specialized metalens that circumvents the need for a large, expensive microscope. By finding a certain kind of defect inside a...

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12:12 FoxNews.comFusion-powered spacecraft could be just a decade away

Fusion-powered spacecraft may not be just a sci-fi dream for much longer.

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11:11 Technology.orgSmall currents for big gains in spintronics

UTokyo researchers have created an electronic component that demonstrates functions and abilities important to future generations of computational

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09:24 Technology.orgCold quasars could rewrite our understanding of a galaxy’s lifecycle

Astronomers have discovered a new class of “cold quasars” that could change our perception of how galaxies mature.

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08:12 Technology.orgHow NASA’s Spitzer Has Stayed Alive for So Long

After nearly 16 years of exploring the cosmos in infrared light, NASA’s Spitzer Space Telescope will be switched

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07:49 Technology.orgNASA’s Fermi Mission Reveals its Highest-energy Gamma-ray Bursts

For 10 years, NASA’s Fermi Gamma-ray Space Telescope has scanned the sky for gamma-ray bursts (GRBs), the universe’s

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07:04 FT.com ScienceThe long-shot that attracted Brad Pitt and Neil Woodford

Promise of abundant nuclear power propelled ‘cold fusion’ company to $918m valuation

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13.06.2019
22:50 ScienceDaily.comMysterious Majorana quasiparticle is now closer to being controlled for quantum computing

Using a new approach, researchers detected the elusive Majorana quasiparticle, notable for being its own antiparticle and for its potential as the basis for a robust quantum computing system, in a device built from a superconductor, small magnetic elements, and a topological insulator.

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21:21 Phys.orgHow NASA's Spitzer has stayed alive for so long

After nearly 16 years of exploring the cosmos in infrared light, NASA's Spitzer Space Telescope will be switched off permanently on Jan. 30, 2020. By then, the spacecraft will have operated for more than 11 years beyond its prime mission, thanks to the Spitzer engineering team's ability to address unique challenges as the telescope slips farther and farther from Earth.

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21:09 Phys.orgMysterious Majorana quasiparticle is now closer to being controlled for quantum computing

As mysterious as the Italian scientist for which it is named, the Majorana particle is one of the most compelling quests in physics.

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20:28 ScienceDaily.comNASA's Fermi mission reveals its highest-energy gamma-ray bursts

For 10 years, NASA's Fermi Gamma-ray Space Telescope has scanned the sky for gamma-ray bursts (GRBs), the universe's most luminous explosions. A new catalog of the highest-energy blasts provides scientists with fresh insights into how they work.

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19:16 Phys.orgFermi mission reveals its highest-energy gamma-ray bursts

For 10 years, NASA's Fermi Gamma-ray Space Telescope has scanned the sky for gamma-ray bursts (GRBs), the universe's most luminous explosions. A new catalog of the highest-energy blasts provides scientists with fresh insights into how they work.

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18:45 ScienceDaily.comSmall currents for big gains in spintronics

A new low-power magnetic switching component could aid spintronic devices.

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18:45 ScienceDaily.comNew quantum dot microscope shows electric potentials of individual atoms

Researchers have developed a new method to measure the electric potentials of a sample at atomic accuracy. The new scanning quantum dot microscopy method could open up new opportunities for chip manufacture or the characterization of biomolecules such as DNA.

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18:01 Yahoo ScienceResearchers Have Found Microscopic Plastic Particles Deep in the Ocean

The concentration is four times the amount that's found near the surface.

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17:59 Nanowerk.comNew quantum dot microscope shows electric potentials of individual atoms

Researchers developed a new method to measure the electric potentials of a sample at atomic accuracy. The new scanning quantum dot microscopy method could open up new opportunities for chip manufacture or the characterization of biomolecules such as DNA.

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17:38 Space.comRelativity to Build Factory for 3-D Printed Rockets at NASA's Stennis Space Center

Small launch vehicle developer Relativity announced June 11 it will establish a production facility for its Terran 1 rocket at NASA's Stennis Space Center.

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17:12 CosmosMagazine.comProbing the intimacies of atom-to-atom contact

Next-level imaging offers insight into quantum computing challenges. Phil Dooley reports.

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17:12 Space.com'God Plays Dice with the Universe,' Einstein Writes in Letter About His Qualms with Quantum Theory

Three letters written by Einstein are up for auction, and they offer an intriguing view of his thoughts on quantum physics.

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16:39 Phys.orgVisualizing a quantum crystal: Imaging the electronic Wigner crystal in 1-D

When electrons that repel each other are confined to a small space, they can form an ordered crystalline state known as a Wigner crystal. Observing the fragile crystal is tricky, since it requires extreme conditions including low temperatures and densities, as well as noninvasive imaging probes. To overcome the challenging conditions of imaging, I. Shapir and a research team in the departments of Physics and Condensed Matter Physics in Israel, Romania and Hungary created conditions in a carbon nanotube (NT) to house the electrons. They followed this experimental step by using a second nanotube as a probe (called "probe NT") to scan the first nanotube (termed "system NT"). The physicists measured the electronic densities and showed their consistency with theoretical predictions to demonstrate small Wigner crystals of up to six electrons in one dimension (1-D). The results are now published

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16:26 Phys.orgDetermining the Earth's gravity field more accurately than ever before

The Earth's gravity fluctuates from place to place. Geodesists use this phenomenon to observe geodynamic and climatological processes. Using satellite-supported recordings, they document the strong fluctuations and the associated spatial and seasonal distributions of mass on and in the Earth. From this, gravity field models can be calculated by which researchers can track rising sea levels or melting glaciers, investigate regional groundwater reserves more closely or analyze oceanic currents.

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14:53 Phys.orgSmall currents for big gains in spintronics

University of Tokyo researchers have created an electronic component that demonstrates functions and abilities important to future generations of computational logic and memory devices. It is between one and two orders of magnitude more power efficient than previous attempts to create a component with the same kind of behavior. This could have applications in the emerging field of spintronics.

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14:27 Nanowerk.comSmall currents for big gains in spintronics

A new low-power magnetic switching component could aid spintronic devices.

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10:35 Technology.orgEuclid Dark Energy Telescope Selects Deep Fields

Three extremely dark patches of the sky have been selected for in-depth observations by the European Space Agency’s

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09:59 GizmagMemory-preserving particles could form part of an Alzheimer s vaccine puzzle


Alzheimer's is a disease with a number of potential causes and therefore a number of potential targets for prevention. One of those centers on a protein call tau, which can gather in long tangles that kill off neurons in the brain. Scientists have developed what they describe as a vaccine to keep the brain clear of these dangerous clumps, and found that treating mice in this way helped stave off the kind of memory decline associated with the disease.
.. Continue Reading Memory-preserving particles could form part of an Alzheimer's vaccine puzzle Category: Medical Tags: Alzheimer's Disease Brain University of New Mexico

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12.06.2019
23:10 Optics and Photonics NewsQuantum Hits the Silver Screen

In a film festival hosted at the Glasgow Science Center, 10 short films—ranging from sci-fi adventures to quantum detectives—will creatively and narratively explore quantum concepts.

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20:08 Nature.ComSpin–orbit-driven band inversion in bilayer graphene by the van der Waals proximity effect

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16:59 ScienceDaily.comAn innovative electron microscope overturning common knowledge of 88 years history

In conventional electron microscopes, performing atomic-resolution observations of magnetic materials is particularly difficult because high magnetic fields are inevitably exerted on samples inside the magnetic objective lens. Newly developed magnetic objective-lens system provides a magnetic-field-free environment at the sample position. This enables direct, atom-resolved imaging of magnetic materials such as silicon steels. This novel electron microscope is expected to be extensively used for the research and development of advanced magnetic materials.

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16:52 Phys.orgMagnetic field may be keeping Milky Way's black hole quiet

Supermassive black holes exist at the center of most galaxies, and our Milky Way is no exception. But many other galaxies have highly active black holes, meaning a lot of material is falling into them, emitting high-energy radiation in this "feeding" process. The Milky Way's central black hole, on the other hand, is relatively quiet. New observations from NASA's Stratospheric Observatory for Infrared Astronomy, SOFIA, are helping scientists understand the differences between active and quiet black holes.

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16:04 Phys.orgX-ray study sheds more light into the nature of a gamma-ray pulsar

Using archival data from ESA's XMM-Newton spacecraft and NASA's Chandra X-ray observatory, astronomers have investigated one of gamma-ray radio-quiet pulsars known as PSR J1826−1256. The study, based on X-ray observations, sheds more light into the nature of this peculiar object and its pulsar wind nebula (PWN). Results of the research were presented in a paper published June 3 on arXiv.org.

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15:52 Phys.orgElectron beam strengthens recyclable nanocomposite

Polymers reinforced with carbon fibers combine strength and low weight. They also boast significant green credentials as they are less resource-intensive during production and use, and they are readily recycled. While the mechanical properties of continuous-fiber laminates are sufficiently competitive for applications in aerospace and automobiles, composites reinforced with short carbon fibers could be attractive for fast-manufacture, and even 3-D printing for applications with more moderate strength requirements. As a result, there is keen interest in optimizing the mechanical properties of short-fiber reinforced thermoplastics to maximize on the potential of these materials. László Szabó and Kenji Takahashi and colleagues at Kanazawa University and Kanazawa Institute of Technology have now demonstrated that irradiating short carbon fiber thermoplastics with an electron beam can improve

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15:17 Phys.orgPulsed electron beams shed light on plastics production

Plastics are all around us—they make up our water bottles, trash bags, packing materials, toys, containers, and more. About 300 million tons of plastic are produced worldwide each year, yet the details of what goes on at the atomic scale during the plastics production process is still unclear.

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14:40 Phys.orgNew result in hunt for mysterious magnetic monopoles

Cutting a magnet in half yields two magnets, each with its own north and south pole. This apparent absence of an isolated magnetic pole, or "magnetic monopole," has puzzled physicists for more than a century. It would seem perfectly natural for a magnetic monopole to exist; Maxwell's equations would reflect complete symmetry between electricity and magnetism if particles with magnetic charge were observed. But the mystery remains: While every known particle is either electrically charged or neutral, none have been found to be magnetically charged.

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14:34 Space.comFusion-Powered Spacecraft Could Be Just a Decade Away

The Direct Fusion Drive engine could take flight for the first time in 2028 or so, if all goes according to plan.

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14:05 Technology.orgAmsterdam University Medical Center wins MR Solutions’ newly launched Image of the Year Award

The Amsterdam University Medical Center has won MR Solutions’ Image of the Year 2019 award for the best

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14:05 LiveScience.com'God Does Not Play Dice with the Universe,' Einstein Writes in Letter About His Qualms with Quantum Theory

Three letters written by Einstein are up for auction, and they offer an intriguing view of his thoughts on quantum physics.

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13:53 Nanowerk.comScientists achieve first observation of three-dimensional quantum Hall effect

In this study, researchers discovered that the carrier density wave induced by electron-electron interaction is the key factor for the appearance of 3D quantum Hall effect. Electrons in such a system can travel freely between different energy bands, like boats traveling in vast ocean.

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08:21 Technology.orgMagnetic Field May Be Keeping Milky Way’s Black Hole Quiet

Supermassive black holes exist at the center of most galaxies, and our Milky Way is no exception. But

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02:02 Improbable Research2019 Ig Nobel Prize ceremony spiffy POSTER (downloadable)

Behold the OFFICIAL POSTER for the 29th First Annual Ig Nobel Prize ceremony, designed by Geri Sullivan. Click on the image to produce a downloadable, printable PDF version. If you are in the Boston (Massachusetts) area, and can help post some paper posters in places your colleagues, neighbors, friends, and rivals will admire them, please […]

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11.06.2019
23:28 Phys.orgEngineers design nanostructured diamond metalens for compact quantum technologies

At the chemical level, diamonds are no more than carbon atoms aligned in a precise, three-dimensional (3-D) crystal lattice. However, even a seemingly flawless diamond contains defects: spots in that lattice where a carbon atom is missing or has been replaced by something else. Some of these defects are highly desirable; they trap individual electrons that can absorb or emit light, causing the various colors found in diamond gemstones and, more importantly, creating a platform for diverse quantum technologies for advanced computing, secure communication and precision sensing.

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22:53 Reuters.com ScienceRocket firm Relativity signs lease with NASA for new robotic 3D printing factory

Relativity Space, a venture-backed rocket maker, said on Tuesday it will lease space from NASA in Mississippi, where its gigantic 3D printers will produce low-cost rockets to be used to launch small-payload satellites into orbit.

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22:36 ScienceDaily.comEngineers design nanostructured diamond metalens for compact quantum technologies

By finding a certain kind of defect inside a block of diamond and fashioning a pattern of nanoscale pillars on the surface above it, engineering researchers can now control the shape of individual photons emitted by the defect. Because those photons carry information about the spin state of an electron, such a system could be used as the basis for compact quantum technologies. 

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22:18 Nanowerk.comEngineers design nanostructured diamond metalens for compact quantum technologies

By finding a certain kind of defect inside a block of diamond and fashioning a pattern of nanoscale pillars on the surface above it, researchers can now control the shape of individual photons emitted by the defect.

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21:37 ScienceDaily.comTracking major sources of energy loss in compact fusion facilities

Analysis of energy loss in low-aspect ratio tokamaks opens a new chapter in the development of predictions of transport in such facilities.

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