Direct measurement of the Wigner function of a one-photon Fock state in a cavity

被引：280

作者：

Bertet, P

Auffeves, A

Maioli, P

Osnaghi, S

Meunier, T

Brune, M

Raimond, JM

Haroche, S

机构：

[1] Ecole Normale Super, Dept Phys, Lab Kastler Brossel, F-75231 Paris 05, France

[2] Coll France, F-75231 Paris, France

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 89卷 / 20期

关键词：

D O I：

10.1103/PhysRevLett.89.200402

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have measured the complete Wigner function W of the vacuum and of a single-photon state for a field stored in a high-Q cavity. This experiment implements the direct Lutterbach and Davidovich method [L. G. Lutterbach and L. Davidovich, Phys. Rev. Lett. 78, 2547 (1997)] and is based on the dispersive interaction of a single circular Rydberg atom with the cavity field. The nonclassical nature of the single-photon field is exhibited by a region of negative W values. Extensions to other nonclassical cavity field states are discussed.

引用

页码：200402 / 200402

页数：4

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