The nature of quantum particles has long puzzled scientists. While single-particle interference suggests that a photon can behave like a spread-out wave, a whole photon is only ever detected in one ...

A compact microwave-photon detector built from a semiconductor double quantum dot and a superconducting cavity could sharpen ...

The concept of entanglement links far-flung particles. That relationship can prove that someone is in the location they claim ...

An MIT-led team has found that data from “near-misses” at the Large Hadron Collider, long dismissed as background noise, can ...

Graph (a) shows the two one-dimensional graph states chain (linear cluster) and star on the left, one above the other, and the two-dimensional graph states box and two variants of the ring on the ...

Scientists have unveiled a new approach to ultra-secure communication that could make quantum encryption simpler and more ...

Quantum theory explains the behavior of matter and energy at the smallest scales, like atoms and subatomic particles. Unlike ...

If photons possess more quantum states than expected, it would overhaul our understanding of all particle physics – and now physicists have identified a way to test this radical idea in an experiment.

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