Tag Archives: Quantum Physics

A Physical Match for the Riemann Zeta Function

Posted on December 8, 2021 by rberkowitz

Mathematical properties of a famous number-theory conjecture correspond to the physical scattering properties of a quantum field theory. Continue reading →

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A Universal Model of Spin Relaxation

Posted on November 19, 2021 by rberkowitz

A first-principles theory predicts nonequilibrium spin dynamics, including various quantum scatterings for general solid materials. Continue reading →

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Research Team Unlocks Path to a Quantum Future

Posted on October 12, 2021 by rberkowitz

Developing new pathways to create and protect quantum coherence will enable exquisitely sensitive measurement and information processing devices that function at ambient or even extreme conditions. Continue reading →

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A Hallmark of Topological Insulators is Measured in Atoms

Posted on September 27, 2021 by rberkowitz

Using ultracold atoms, researchers measure the number of chiral edge states in a system with time-reversal symmetry. Continue reading →

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Quantum Metasurfaces Entangle Photons on Demand

Posted on July 21, 2021 by rberkowitz

When it’s modulated by laser beams, a surface made of polarizable meta-atoms can entangle a photon’s properties in multiple, controllable ways. Continue reading →

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Macroscopic systems can be controllably entangled and limitlessly measured

Posted on July 1, 2021 by rberkowitz

Two oscillating membranes demonstrate correlations forbidden by classical physics. Continue reading →

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An Optical System Defies Conventional Band Theory

Posted on June 11, 2021 by rberkowitz

Squeezed wave functions reshape an open quantum system’s
bulk-boundary properties and generate a new class of parity-time
symmetry. Continue reading →

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Large systems can be controllably entangled and limitlessly measured

Posted on May 27, 2021 by rberkowitz

A mechanical oscillator has quantum properties that can be directly observed. Read more in APS Physics…

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The Entangled Dance of Atom Beams

Posted on February 23, 2021 by rberkowitz

Entangled pairs of ultracold atoms interfere in a double waveguide. Continue reading →

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Ultrabright Photons for Single-Chip Quantum Devices

Posted on January 1, 2021 by rberkowitz

A microcavity-based source of photon pairs achieves one hundred times the efficiency of state-of-the-art devices. Read more in APS Physics…

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