Squeeze tomography of quantum states

被引:19
作者
Castaños, O [1 ]
López-Peña, R [1 ]
Man'ko, MA [1 ]
Man'ko, VI [1 ]
机构
[1] Univ Nacl Autonoma Mexico, Inst Ciencias Nucl, Mexico City, DF, Mexico
来源
JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL | 2004年 / 37卷 / 35期
关键词
D O I
10.1088/0305-4470/37/35/009
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
A new type of tomogram, squeeze tomograms, of quantum states of light, is introduced, which is based on measuring photon statistics after the action of a squeeze operator on the states' density matrix. The introduced tomograms are photon number probability functions depending on two real parameters which are a scaling factor and a rotation angle. The rotation angle and scaling factor label the reference frame in the phase space of field quadratures in which the photon statistics is measured. The expressions of the squeeze tomogram in terms of the Wigner function and density matrix in quadrature representation are obtained. The examples of squeezed states, even and odd coherent states and thermal states are considered in detail. The multimode generalization is discussed.
引用
收藏
页码:8529 / 8544
页数:16
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