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arXiv 1012.3910quant-ph
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测量物质波古伊相位的实验方案

Experimental proposal for measuring the Gouy phase of matter waves

I. G. da Paz, P. L. Saldanha, M. C. Nemes, J. G. Peixoto de Faria

摘要:

原子束的薛定谔方程预言,它在束腰附近一定有一个相位异常,类似于电磁束的古伊相位。我们在这里提出了一个可行的实验,它允许直接使用拉姆齐干涉测量与里德伯原子确定这种异常的阶段。可能的实验局限性进行了讨论,并显示在当今的技术完全控制。我们还讨论了如何这一发现可以打开的可能性,使用的空间模式波函数的原子作为q-dits,因为古伊相位是一个必不可少的成分,使旋转的量子态。

英文摘要:

The Schrödinger equation for an atomic beam predicts that it must have a phase anomaly near the beam waist analogous to the Gouy phase of an electromagnetic beam. We propose here a feasible experiment which allows for the direct determination of this anomalous phase using Ramsey interferometry with Rydberg atoms. Possible experimental limitations are discussed and shown to be completely under control within the present day technology. We also discuss how this finding can open the possibility to use the spatial mode wavefunctions of atoms as q-dits, since the Gouy phase is an essential ingredient for making rotations in the quantum states.

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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