Mesoscopic quantum reality in the light of new technologies

薛定谔猫无视宏观现实的证据已经出现在由几个原子、离子或光子组成的系统中，导致2012年获得诺贝尔物理学奖。然而，量子科学技术的发展使得这些状态可以在越来越多的介观水平上进行实验。这个项目将开发一种理论，在实验中测试介观真实感、非局域性和退相干，重点是冷原子和离子陷阱系统。这个项目将基于贝尔定理、爱因斯坦-蒲多尔斯基-罗森悖论和薛定谔的量子操控来研究多体非定域性。除了具有基本意义外，这些演示还可能对计量学、安全量子密码学和超灵敏探测器有用。

Evidence for the Schrodinger cat that defies macroscopic reality has emerged for systems of several atoms, ions or photons, resulting in a Nobel award in physics in 2012. However, developments in quantum science technology make these states experimentally accessible at an increasingly mesoscopic level. This project will develop a theory to test mesoscopic realism, nonlocality and decoherence in experiment, focusing on cold atom and ion trap systems. This project will study multipartite nonlocality based on Bell's theorem, the Einstein-Podolsky-Rosen paradox and Schrodinger's quantum steering. As well as having fundamental significance, these demonstrations are potentially useful for metrology, secure quantum cryptography and ultra-sensitive detectors.