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arXiv 1502.07875quant-phgr-qc
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量子统计对引力弱等效原理的影响

Effect of quantum statistics on the gravitational weak equivalence principle

S. V. Mousavi, A. S. Majumdar, D. Home

摘要:

研究了量子统计对由几率流密度计算的量子粒子到达时间分布的影响。它表明,对称化或非对称化的波函数的影响,甚至自由传播粒子的到达时间分布。为了研究统计对量子力学弱等效原理的影响,我们计算了自由降落中波包的平均到达时间。违反WEQ通过统计的平均到达时间的质量依赖性的影响,清楚地展示。我们最后评估的影响,自旋违反WEQ使用不同的方法,包括一个明确的自旋依赖的概率电流分布,并比较它与粒子统计的方法。结果表明,在大质量的极限下,WEQ的再现是平滑的。

英文摘要:

We study the effect of quantum statistics on the arrival time distribution of quantum particles computed through the probability current density. It is shown that symmetrization or asymmetrization of the wave function affects the arrival time distribution for even freely propagating particles. In order to investigate the effect of statistics on the weak equivalence principle in quantum mechanics (WEQ), we then compute the mean arrival time for wave packets in free fall. The violation of WEQ through the effect of statistics on the mass-dependence of the mean arrival time is clearly exhibited. We finally evaluate the effect of spin on the violation of WEQ using a different approach by including an explicit spin-dependence in the probability current distribution, and compare it with the approach using particle statistics. Our results show WEQ re-emerges smoothly in the limit of large mass.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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