Imperial researchers have proposed a new way to directly probe quantum entanglement, the effect that led to the puzzling concept of "spooky action at a distance," where previously grouped particles' ...

Particles that don’t seem to be entangled have earned a high score on a famous test of entanglement. The experiment could offer a fresh look at what makes the quantum world so strange. Nearly 60 years ...

Quantum nonlocality refers to the counter-intuitive correlations exhibited by entangled particles that defy any classical description based on local causes and effects. Bell inequalities provide a ...

In the early 1960s the physicist John Bell dreamt up one of the most profound experimental tests ever imagined. While on sabbatical in the US on leave from CERN, he had been contemplating the ...

Experimental randomness amplification with Anatoly Kulikov, Simon Storz, Josua D. Schär, Martin Sandfuchs, Florence Berterottière, Christoph Hellings, Renato Renner, and Andreas Wallraff ...