Experimental proposal for measuring the Gouy phase of matter waves

被引：24

作者：

da Paz, I. G. ^{[1
,2
]}

Saldanha, P. L. ^{[2
,3
]}

Nemes, M. C. ^{[2
]}

Peixoto de Faria, J. G. ^{[4
]}

机构：

[1] Univ Fed Piaui, Dept Fis, BR-64049550 Teresina, PI, Brazil

[2] Univ Fed Minas Gerais, Dept Fis, Inst Ciencias Exatas, BR-30161970 Belo Horizonte, MG, Brazil

[3] Univ Oxford, Dept Phys, Clarendon Lab, Oxford OX1 3PU, England

[4] Ctr Fed Educ Tecnol Minas Gerais, Dept Fis & Matemat, BR-30510000 Belo Horizonte, MG, Brazil

来源：

NEW JOURNAL OF PHYSICS | 2011年 / 13卷

关键词：

ORBITAL ANGULAR-MOMENTUM; ATOMS; LIGHT; ENTANGLEMENT; PHOTON; STATES; BEAMS;

D O I：

10.1088/1367-2630/13/12/125005

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The Schrodinger 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 that allows for 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 present-day technology. We also discuss how this finding can open the possibility of using the spatial mode wavefunctions of atoms as q-dits, since the Gouy phase is an essential ingredient for making rotations in the quantum states.

引用

页数：9

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