Nonclassicality generated by repeatedly operating photon annihilation-then-creation and creation-then-annihilation on squeezed vacuum

作者：Xu, Xue-xiang^*; Yuan, Hong-chun; Zhou, Lin

来源：Optics Communications, 2015, 335: 133-139.

DOI：10.1016/j.optcom.2014.09.019

• Photon creation-then-annihilation operation (CA)
• Photon annihilation-then-creation operation (AC)
• Wigner function
• Nonclassicality

We theoretically examine nonclassical properties of the field states generated by repeatedly applying photon annihilation-then-creation operation (AC) and creation-then-annihilation operation (CA) to the squeezed vacuum (SV). We firstly derive their normalization factors and then compare their statistical properties, such as photon number distribution, mean photon number, Mandel Q parameter, and the Wigner function. It is found that the ACSV can present more clear nonclassicality than the CASV.

• 出版日期2015-1-15
• 单位常州工学院; 江西师范大学