中国物理学会期刊网
海外物理新闻

 
Single Microwave Photons Spotted on the Rebound

2018-04-23 18:00:00.0

Author(s): Kater W. Murch

A cavity-confined qubit can register the reflection of a single microwave photon without destroying it.


[Physics 11, 38] Published Mon Apr 23, 2018

doi:10.1103/Physics.11.38
 
 
A Magnetic-Field-Free Exciton Condensate

2018-04-23 18:00:00.0

Author(s): Timo Hyart

Experiments suggest that a stable condensate of electron-hole pairs can be obtained without applying a large magnetic field, simplifying future applications based on this unusual pairing phenomenon.


[Physics 11, 39] Published Mon Apr 23, 2018

doi:10.1103/Physics.11.39
 
 
Meetings: APS April Meeting—Cosmologists Can’t Agree on the Hubble Constant

2018-04-20 18:00:00.0

The discrepancy in measures of the Hubble constant, which quantifies the expansion of the Universe, has only grown in recent years.


[Physics 11, 40] Published Fri Apr 20, 2018

doi:10.1103/Physics.11.40
 
 
An Expanding Universe in the Lab

2018-04-19 18:00:00.0

The rapid expansion of a Bose-Einstein condensate can mimic the expansion of the Universe.


[Physics] Published Thu Apr 19, 2018

 
 
How Diamond-Like Carbon Films Grow

2018-04-18 18:00:00.0

Machine-learning-based molecular dynamics simulations explain the growth mechanism of diamond-like amorphous carbon films.


[Physics] Published Wed Apr 18, 2018

 
 
Hidden Structure of Plasmons

2018-04-17 18:00:00.0

Calculations of the current density within collective charge oscillations called plasmons reveal a complicated structure that could affect how plasmons reflect off a boundary.


[Physics] Published Tue Apr 17, 2018

 
 
Listening for the Cosmic Hum of Black Holes

2018-04-16 18:00:00.0

Author(s): Neil Cornish

A new analysis technique would allow the gravitational-wave “background” from distant black hole mergers to be detected in days instead of years.


[Physics 11, 36] Published Mon Apr 16, 2018

doi:10.1103/Physics.11.36
 
 
How 1000 Bacterial Species Can Coexist

2018-04-13 18:00:00.0

Author(s): Mark Buchanan

The surprising stability of large and diverse bacterial communities can be explained by a model that emphasizes the microbes’ food requirements.


[Physics 11, 37] Published Fri Apr 13, 2018

doi:10.1103/Physics.11.37
 
 
Stretching Graphene Localizes its Electrons

2018-04-12 18:00:00.0

The electrical properties of a graphene bilayer can be tuned by stretching and rotating one of the bilayer’s sheets.


[Physics] Published Thu Apr 12, 2018

 
 
Getting More out of Electron Microscopy

2018-04-11 18:00:00.0

A new analysis technique allows researchers to extract atomic-resolution holographic images of materials using a transmission electron microscope.


[Physics] Published Wed Apr 11, 2018

 
 
Muons for Nuclear Waste Inspection ?

2018-04-10 18:00:00.0

Muons could be used to check whether spent fuel rods are missing from the casks used to store waste nuclear material.


[Physics] Published Tue Apr 10, 2018

 
 
Homing in on Axions?

2018-04-09 18:00:00.0

Author(s): Frank T. Avignone III

A search for dark matter axions with unprecedented sensitivity tests a previously inaccessible parameter range for these hypothetical particles.


[Physics 11, 34] Published Mon Apr 09, 2018

doi:10.1103/Physics.11.34
 
 
Neutrinos with a Single Energy

2018-04-06 18:00:00.0

Author(s): Michael Schirber

Neutrinos in a beam have a wide range of energies, but a new trick allowed researchers to isolate fixed-energy neutrinos, which can improve the precision in future experiments.


[Physics 11, 35] Published Fri Apr 06, 2018

doi:10.1103/Physics.11.35
 
 
Connecting Noisy Single-Cell Dynamics to Smooth Population Growth

2018-04-05 18:00:00.0

A new theoretical framework connects the exponential growth of a cell population to the stochastic replication of individual cells within the population.


[Physics] Published Thu Apr 05, 2018

 
 
The Geometry of Arctic Ponds

2018-04-04 18:00:00.0

A geometric model of meltwater ponds may help predict how the polar ice caps might evolve under future climate changes.


[Physics] Published Wed Apr 04, 2018

 
 
Splitting the Jets

2018-04-03 18:00:00.0

The structure of jets emerging from high-energy collisions of lead ions may provide a new way to study the quark-gluon plasma created in those same collisions.


[Physics] Published Tue Apr 03, 2018

 
 
Wave Trick May Lead to Wireless Charging at a Distance

2018-04-02 18:00:00.0

Author(s): Philip Ball

A technique involving wave interference may improve the practicality of charging a phone wirelessly at some distance from the power source.


[Physics 11, 33] Published Mon Apr 02, 2018

doi:10.1103/Physics.11.33
 
 
Brain Motion Under Impact

2018-03-30 18:00:00.0

Author(s): Philip Bayly

A numerical study suggests that head impacts primarily induce a few low-frequency, damped modes of vibration in brain tissue, a finding that could inform the design of sports helmets.


[Physics 11, 32] Published Fri Mar 30, 2018

doi:10.1103/Physics.11.32
 
 
Silica’s High-Pressure Phase

2018-03-29 18:00:00.0

The rapid compression of silica to pressures of 36 GPa and higher transforms it from an amorphous material to a tetragonal crystal.


[Physics] Published Thu Mar 29, 2018

 
 
Transition to Superlubricity in 2D

2018-03-28 18:00:00.0

Studying particles sliding over a 2D potential lattice, researchers have observed a phase transition between a frictional regime and a frictionless, “superlubric” regime


[Physics] Published Wed Mar 28, 2018

 
 
Financial Brownian Motion

2018-03-27 18:00:00.0

Using data on the activity of individual financial traders, researchers have devised a microscopic financial model that can explain macroscopic market trends.


[Physics] Published Tue Mar 27, 2018

 
 
The Hunt for No Neutrinos

2018-03-26 18:00:00.0

Author(s): Jonathan Engel and Petr Vogel

Four experiments have demonstrated new levels of sensitivity to neutrinoless double-beta decay, a process whose existence would prove that neutrinos are their own antiparticles.


[Physics 11, 30] Published Mon Mar 26, 2018

doi:10.1103/Physics.11.30
 
 
Barium Ion Detector for Next-Generation Neutrino Studies

2018-03-26 18:00:00.0

Author(s): David Lindley

A device that can detect individual barium ions could be the heart of an experiment that takes the next step toward probing the nature of the neutrino.


[Physics 11, 31] Published Mon Mar 26, 2018

doi:10.1103/Physics.11.31
 
 
Cosmic Instability Could Have Created Dark Matter

2018-03-23 18:00:00.0

A proposed instability in the Higgs field could have seeded the Universe with primordial black holes that now serve as dark matter.


[Physics] Published Fri Mar 23, 2018

 
 
Neutron Test for Newton’s Gravity

2018-03-22 18:00:00.0

Experiments with neutrons search for violations of gravity’s inverse square law at subnanometer distances.


[Physics] Published Thu Mar 22, 2018

 
 
Controlling the Rate of Nuclear Decay

2018-03-21 18:00:00.0

The rate of a nuclear transition of thorium-229 can be controlled by placing the atom in a cavity or in a thin film—an effect that could lead to ultraprecise nuclear clocks.


[Physics] Published Wed Mar 21, 2018

 
 
Polymers Reduce Drag More than Expected

2018-03-19 18:00:00.0

Author(s): Markus Holzner

Adding polymer to a liquid was thought to reduce drag only up to a point, but new experiments have found exceptions to the usual limit.


[Physics 11, 29] Published Mon Mar 19, 2018

doi:10.1103/Physics.11.29
 
 
Rinsing is Key to Removing Stains

2018-03-16 18:00:00.0

Author(s): Michael Schirber

Experiments show that rinsing clothes after washing can create imbalances in detergent concentration that pulls dirt out of the fabric.


[Physics 11, 28] Published Fri Mar 16, 2018

doi:10.1103/Physics.11.28
 
 
Two-Face Dipole

2018-03-15 18:00:00.0

A proposed dipole source of electromagnetic waves can selectively couple its emission into either of two neighboring waveguides.


[Physics] Published Thu Mar 15, 2018

 
 
Meetings: Scenes from the 2018 APS March Meeting

2018-03-14 18:00:00.0

Paper microscopes, Google’s new quantum computer, and a very unusual journal were just a few of the announcements at the world’s largest physics meeting.


[Physics 11, 27] Published Wed Mar 14, 2018

doi:10.1103/Physics.11.27
 
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