Category Archives: APS Physics

Active Particles Map to Passive Random Walks

Posted on November 13, 2020 by rberkowitz

Researchers make systems of self-propelled particles produce the same large-scale dynamics as passive-particle systems. Continue reading →

Posted in APS Physics | Tagged , , | Leave a comment

A Tune for Lowering Lattice Friction

Posted on November 3, 2020 by rberkowitz

Placing an acoustic source on a sample could eliminate the energy dissipation caused by atomic defects moving through the solid. Continue reading →

Posted in APS Physics | Tagged , , | Leave a comment

Toward a Perfect Single-Photon Source

Posted on October 15, 2020 by rberkowitz

Semiconductor quantum dot emits photons that are squeezed below the fundamental noise limit. Continue reading →

Posted in APS Physics | Tagged , , | Leave a comment

Quantum Simulations of Curved Space

Posted on September 10, 2020 by rberkowitz

A heptagonal-lattice superconducting circuit, and the mathematics thatdescribe it, provide tools for studying quantum mechanics in curvedspace. Read more in APS Physics…

Posted in APS Physics | Tagged , , | Leave a comment

Finding Flow in Granular Media

Posted on August 24, 2020 by rberkowitz

A new model can predict how packed particles move through both 2D and 3D channels. Continue reading →

Posted in APS Physics | Tagged , , | Leave a comment

Coldest Electrons Ever from Photocathodes

Posted on August 6, 2020 by rberkowitz

Researchers have generated the coldest electrons to date from solid-state photocathodes, an achievement that could improve electron sources for particle accelerators and ultrafast electron microscopy applications.  Continue reading →

Posted in APS Physics | Tagged , , | Leave a comment

Real-Time Measurements of Earth’s Spin and Tilt

Posted on July 17, 2020 by rberkowitz

An array of ring lasers provides the first continuous measurement of Earth’s motion from a single location.  Continue reading →

Posted in APS Physics | Tagged , , , | Leave a comment

Building Novel Carbon Allotropes

Posted on July 2, 2020 by rberkowitz

Calculations indicate that a form of carbon synthesized from pentagonal hydrocarbon molecules could have unusual electrical and mechanical properties.  Continue reading →

Posted in APS Physics | Tagged , , | Leave a comment

Ion Recoil from Photon Beam Observed

Posted on June 22, 2020 by rberkowitz

Experiments confirm that photonionized molecules get a backward kick, as predicted by theory.  Continue reading →

Posted in APS Physics | Tagged , , , | Leave a comment

Unjammed Emulsions Collapse to Liquids

Posted on May 27, 2020 by rberkowitz

An emulsion’s rigidity disappears when the droplets’ random thermal motion overcomes the confining pressure that binds them.  Continue reading →

Posted in APS Physics | Tagged , , | Leave a comment