Loophole-free Bell inequality violation with superconducting circuits.

ABSTRACT: Superposition, entanglement and non-locality constitute fundamental features of quantum physics. The fact that quantum physics does not follow the principle of local causality^1-3 can be experimentally demonstrated in Bell tests⁴ performed on pairs of spatially separated, entangled quantum systems. Although Bell tests, which are widely regarded as a litmus test of quantum physics, have been explored using a broad range of quantum systems over the past 50 years, only relatively recently have experiments free of so-called loopholes⁵ succeeded. Such experiments have been performed with spins in nitrogen-vacancy centres⁶, optical photons^7-9 and neutral atoms¹⁰. Here we demonstrate a loophole-free violation of Bell's inequality wi

SUBMITTER: Storz S 

PROVIDER: S-EPMC10172133 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature