Tag Archives: Quantum Physics

Quantum Metasurfaces Entangle Photons on Demand

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

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

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An Optical System Defies Conventional Band Theory

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

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

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

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Ultrabright Photons for Single-Chip Quantum Devices

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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A 2D Metal Compound Shows a Superconducting Surprise

A cesium-rich “kagome” metal is both a topological insulator and a superconductor, making it a compelling material for future quantum technologies. Continue reading

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Quantum Simulations of Curved Space

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

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