Wigner Function of Density Operator for Negative Binomial Distribution

• 来源期刊: 理论物理通讯(英文版)
• 年，卷（期）: 2008,（6）
• 页码范围: 1453-1456
• 页数: 4页
• 语种: 英文

摘要

By using the technique of integration within an ordered product (IWOP) of operator we derive Wigner function of density operator for negative binomial distribution of radiation field in the mixed state case, then we derive the Wigner function of squeezed number state, which yields negative binomial distribution by virtue of the entangled state representation and the entangled Wigner operator.