期刊
PHYSICAL REVIEW A
卷 95, 期 3, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.95.030105
关键词
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资金
- NSF
- DARPA
- NASA
- MURI grant through AFOSR
- MURI grant through ARO
- European Union Seventh Framework Programme through the ERC Grant QIOS [306576]
- Direct For Mathematical & Physical Scien
- Division Of Physics [1505862] Funding Source: National Science Foundation
We experimentally demonstrate the strictly nonclassical behavior in a many-atom system using a recently derived criterion [E. Kot et al., Phys. Rev. Lett. 108, 233601 (2012)] that explicitly does not make use of quantum mechanics. We thereby show that the magnetic-moment distribution measured by McConnell et al. [Nature (London) 519, 439 (2015)] in a system with a total mass of 2.6 x 10(5) atomic mass units is inconsistent with classical physics. Notably, the strictly nonclassical behavior affects an area in phase space 10(3) times larger than the Planck quantum (h) over bar.
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