中国物理学会期刊网
海外物理新闻

 
A Crowd Freezes Up

2019-09-09 18:00:00

Author(s): Fran?ois A. Lavergne

Dense flocks of beads flowing in a channel can “freeze” like ice—a unique type of phase transition that may be applicable to human crowds.


[Physics 12, 99] Published Mon Sep 09, 2019

doi:10.1103/Physics.12.99
 
 
Cooling on the Negative Side

2019-09-06 18:00:00

Author(s): Michael Schirber

A new cooling technique targets negative ions, which are typically resistant to cooling methods that work with atoms and positive ions.


[Physics 12, 98] Published Fri Sep 06, 2019

doi:10.1103/Physics.12.98
 
 
Long-Haul Quantum Key Distribution

2019-09-05 18:00:00

Two independent studies demonstrate the practicality of twin-field quantum key distribution—a promising approach to performing quantum cryptography over long distances.


[Physics] Published Thu Sep 05, 2019

 
 
Placing Single Impurities into a Crystal

2019-09-04 18:00:00

A new technique inserts single-ion impurities into a crystal reliably and with a precision of tens of nanometers.


[Physics] Published Wed Sep 04, 2019

 
 
Cavity Spintronics Gets More with Less

2019-09-03 18:00:00

Author(s): Can-Ming Hu

A new design for a cavity spintronic device obtains a strong photon-magnon coupling with a magnet that is over 1000 times smaller than previously used magnets.


[Physics 12, 97] Published Tue Sep 03, 2019

doi:10.1103/Physics.12.97
 
 
Tinkering with Superconductivity in a Quasicrystal

2019-09-03 18:00:00

Quasicrystals might host an exotic superconducting phase when subjected to a magnetic field, according to a theoretical study.


[Physics] Published Tue Sep 03, 2019

 
 
A Prediction for “Hot” Superconductivity

2019-08-26 18:00:00

Author(s): José A. Flores-Livas and Ryotaro Arita

A proposed hydrogen-rich solid would superconduct above the boiling point of water—though the material would need to be subjected to a colossal pressure.


[Physics 12, 96] Published Mon Aug 26, 2019

doi:10.1103/Physics.12.96
 
 
X-Ray Imaging Goes Quantum

2019-08-23 18:00:00

Author(s): Matteo Rini

The first demonstration of a source of quantum correlated x-ray photons shows that such photons can enhance x-ray imaging.


[Physics 12, 95] Published Fri Aug 23, 2019

doi:10.1103/Physics.12.95
 
 
A Ferroelastic Film at the Edge of Chaos

2019-08-22 18:00:00

Author(s): Pol Lloveras

Period doubling—a behavior seen in systems that are nearing a chaotic regime—shows up in the microstructure of a strain-textured material.


[Physics 12, 94] Published Thu Aug 22, 2019

doi:10.1103/Physics.12.94
 
 
A Heat Engine Made of a Single Ion Spin

2019-08-22 18:00:00

By converting electron spin into ion motion, researchers build a simple heat engine out of a single calcium ion.


[Physics] Published Thu Aug 22, 2019

 
 
Quantum Interference Across an Astronomical Distance

2019-08-21 18:00:00

Researchers witness quantum interference and entanglement between photons from sources 150 million km apart—the Sun and a quantum dot in their lab.


[Physics] Published Wed Aug 21, 2019

 
 
Toward Topological Protection with Qubits

2019-08-20 18:00:00

A chain of superconducting qubits reproduces two key features of topological insulators.


[Physics] Published Tue Aug 20, 2019

 
 
Questioning a Universal Law for Electron Attenuation

2019-08-19 18:00:00

Author(s): Wolfgang S. M. Werner

A law describing electron attenuation in solids has long helped researchers determine the size of nanoscale objects, but experiments show that it is less general than previously thought.


[Physics 12, 93] Published Mon Aug 19, 2019

doi:10.1103/Physics.12.93
 
 
Friction, Not Inertia, Controls Avalanches

2019-08-16 18:00:00

Author(s): Peter Weiss

By tuning the friction between tiny beads suspended in water, researchers gain new understanding of how avalanches begin.


[Physics 12, 92] Published Fri Aug 16, 2019

doi:10.1103/Physics.12.92
 
 
Quantum Teleportation Now Comes in 3D

2019-08-15 18:00:00

The first experiment to teleport qutrits rather than qubits paves the way to teleporting the complete quantum state of a particle.


[Physics] Published Thu Aug 15, 2019

 
 
A Random Approach to Quantum Simulation

2019-08-14 18:00:00

Author(s): Dominic W. Berry

A new way to simulate a molecule is potentially much faster than other approaches because it relies on random—as opposed to deterministic—sequences of operations.


[Physics 12, 91] Published Wed Aug 14, 2019

doi:10.1103/Physics.12.91
 
 
Static Electricity Needs Water

2019-08-14 18:00:00

Experiments pressing two materials together show that static electricity accumulates when surface water lets ions move from one surface to another.


[Physics] Published Wed Aug 14, 2019

 
 
Hydrodynamic Cloaks

2019-08-13 18:00:00

Two separate groups have designed structures that can hide objects from fluid flows and surface waves so that no wake is visible.


[Physics] Published Tue Aug 13, 2019

 
 
Seeking Stardust in the Snow ?

2019-08-12 18:00:00

Iron-60 found in fresh Antarctic snow was forged in nearby supernovae and could help deduce the structure and origin of interstellar dust clouds. ?


[Physics] Published Mon Aug 12, 2019

 
 
Entangling Photon Sources on a Tiny Bridge

2019-08-09 18:00:00

Author(s): Philip Ball

Researchers entangled a pair of atomic-scale light emitters in a micrometer-scale device, which could potentially be useful for quantum communication and cryptography.


[Physics 12, 90] Published Fri Aug 09, 2019

doi:10.1103/Physics.12.90
 
 
Entangling the Radial Parts of Photons

2019-08-08 18:00:00

Correlations between the radial position and radial momentum of entangled photons demonstrate the suitability of these properties for quantum information applications. ?


[Physics] Published Thu Aug 08, 2019

 
 
Watching a Molecule Relax While it Reacts

2019-08-07 18:00:00

Atomic force microscopy detects the subtle structural changes that take place when a molecule is ionized.


[Physics] Published Wed Aug 07, 2019

 
 
Laser Stars for Astrophysical Calibrations

2019-08-06 18:00:00

Laser-generated “stars”—used at telescopes to correct for atmospheric turbulence—could help researchers calibrate the wavelengths of certain astrophysical observations.


[Physics] Published Tue Aug 06, 2019

 
 
A Laser-Sharp View of Electron Correlations

2019-08-05 18:00:00

Author(s): Fu-chun Zhang

A high-resolution photoemission experiment provides an unprecedented test of a theory describing the effects of strong electron correlations in solids.


[Physics 12, 89] Published Mon Aug 05, 2019

doi:10.1103/Physics.12.89
 
 
Light Seems to Pull Electrons Backward

2019-08-02 18:00:00

Author(s): Mark Buchanan

Light hitting a metal surface at an angle sends the electrons moving in the direction opposite to the light, a result that puzzles theorists.


[Physics 12, 88] Published Fri Aug 02, 2019

doi:10.1103/Physics.12.88
 
 
Spectral Evidence of a Supersolid Made of Cold Atoms

2019-08-01 18:00:00

Researchers find new evidence that a Bose-Einstein condensate made of erbium atoms undergoes a phase transition into a bizarre form of quantum matter.


[Physics] Published Thu Aug 01, 2019

 
 
Topological Insulators Do the Twist

2019-08-01 18:00:00

Theorists uncover a new magnetomechanical effect in topological insulators that are hotter than their environment.


[Physics] Published Thu Aug 01, 2019

 
 
Ion Collisions Reveal Photon-Photon Scattering

2019-07-31 18:00:00

Researchers at the Large Hadron Collider conclusively detect two photons scattering off each other, following initial evidence first published in 2017.


[Physics] Published Wed Jul 31, 2019

 
 
When Cyberattacks Bring Traffic to a Halt

2019-07-30 18:00:00

Researchers calculated the number of cars that hackers would have to bring down in order to cripple Manhattan traffic.


[Physics] Published Tue Jul 30, 2019

 
 
Highest Energy Astrophysical Photons Detected

2019-07-29 18:00:00

Author(s): Rene A. Ong

An experiment operating at high altitudes in Tibet has detected the highest energy photons ever observed from an astrophysical source, the Crab Nebula.


[Physics 12, 87] Published Mon Jul 29, 2019

doi:10.1103/Physics.12.87
 
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