中国物理学会期刊网
海外物理新闻

 
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
 
 
Putting Distance Between Collider Events

2019-07-26 18:00:00

Author(s): Michael Schmitt

A new way to measure the “distance” between high-energy particle collision events can help researchers interpret events involving, for example, the production of Higgs bosons or of top quarks.


[Physics 12, 85] Published Fri Jul 26, 2019

doi:10.1103/Physics.12.85
 
 
Biological Attacks Have Lessons for Image Recognition

2019-07-26 18:00:00

Author(s): Ramin Skibba

A trick that pathogens use against the immune system turns out to be similar to a technique for fooling an image recognition algorithm.


[Physics 12, 86] Published Fri Jul 26, 2019

doi:10.1103/Physics.12.86
 
 
Q&A: Defects Wanted; Apply Here

2019-07-25 18:00:00

Kai-Mei Fu studies the properties of atomic defects in materials with the goal of using these normally unwanted flaws to create quantum technologies for secure communication.


[Physics 12, 81] Published Thu Jul 25, 2019

doi:10.1103/Physics.12.81
 
 
Correcting Hardware Bias in Molecular Spectrometers

2019-07-24 18:00:00

More accurate measurements of CO2 in the atmosphere can be obtained by accounting for discrepancies in spectroscopy hardware.


[Physics] Published Wed Jul 24, 2019

 
 
Topological Behavior Spotted in Photonic Systems

2019-07-23 18:00:00

Two groups of researchers engineered semiconductor systems that sustain exotic phases of matter.


[Physics] Published Tue Jul 23, 2019

 
 
Optical Tomography for Supernovae ?

2019-07-22 18:00:00

Author(s): John Raymond

A new optical spectroscopy method can characterize the chemical composition of different layers of the material ejected from type Ia supernovae, delivering clues to the star’s history.


[Physics 12, 82] Published Mon Jul 22, 2019

doi:10.1103/Physics.12.82
 
 
Physics from the Moon

2019-07-22 18:00:00

50 years after the Apollo mission, a new crop of lunar exploration projects could extend the physics-related research we can do from the Moon.


[Physics 12, 84] Published Mon Jul 22, 2019

doi:10.1103/Physics.12.84
 
 
Spacecraft Separation Measured to the Nanometer

2019-07-19 18:00:00

Author(s): Philip Ball

A pair of satellites 200 km apart has demonstrated a record-high precision in distance determination, which will be useful for mapping out Earth’s gravitational field.


[Physics 12, 83] Published Fri Jul 19, 2019

doi:10.1103/Physics.12.83
 
 
Seeing Around Corners in Real Time

2019-07-18 18:00:00

Using a laser, a high-speed detector, and an array of tiny movable mirrors, researchers can reconstruct an image of a hidden object in under a second.


[Physics] Published Thu Jul 18, 2019

 
 
A New Tool for Sensing Phonons in Liquid Helium

2019-07-17 18:00:00

Nanomechanical resonators probe helium-4 at record low temperatures in a proof-of-concept experiment demonstrating the potential to explore fundamental properties of quantum fluids.


[Physics] Published Wed Jul 17, 2019

 
 
Could Levitated Nanoparticles Test Spontaneous Wave-Function Collapse?

2019-07-16 18:00:00

The motion of hovering nanoparticles might reveal that quantum wave functions collapse spontaneously, but three common measurement methods are not ready for prime time.


[Physics] Published Tue Jul 16, 2019

 
 
Ion Clock Busts into New Precision Regime

2019-07-15 18:00:00

Author(s): Pierre Dubé

An aluminum ion clock has a fractional-frequency uncertainty of less than one part in 1018, a four-decades-long goal in precision.


[Physics 12, 79] Published Mon Jul 15, 2019

doi:10.1103/Physics.12.79
 
 
Video—Stop and Go Droplets

2019-07-12 18:00:00

Author(s): David Ehrenstein

Liquid droplets bouncing on a vibrating liquid surface can execute a surprising cycle, alternating between moving and standing still.


[Physics 12, 80] Published Fri Jul 12, 2019

doi:10.1103/Physics.12.80
 
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