quant-ph

# Title:Strictly nonclassical behavior of a mesoscopic system

Abstract: 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. [R. McConnell et al., Nature 519, 439 (2015)] in a system with a total mass of $2.6\times 10^5$ 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 $\hbar$.
 Comments: 5 pages Subjects: Quantum Physics (quant-ph); Atomic Physics (physics.atom-ph) Journal reference: Phys. Rev. A 95, 030105 (2017) DOI: 10.1103/PhysRevA.95.030105 Cite as: arXiv:1606.05392 [quant-ph] (or arXiv:1606.05392v4 [quant-ph] for this version)

## Submission history

From: Jiazhong Hu [view email]
[v1] Fri, 17 Jun 2016 01:04:40 UTC (454 KB)
[v2] Sat, 9 Jul 2016 01:46:03 UTC (454 KB)
[v3] Thu, 15 Sep 2016 15:44:27 UTC (455 KB)
[v4] Fri, 17 Mar 2017 02:54:05 UTC (455 KB)
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