中国物理B ›› 2004, Vol. 13 ›› Issue (12): 2058-2063.doi: 10.1088/1009-1963/13/12/014
苏保霞1, 李希曾2, 柴路3
Li Xi-Zeng (李希曾)abd, Su Bao-Xia (苏保霞)a, Chai Lu (柴路)bc
摘要: It is found that the two-mode output quantum electromagnetic field in two-mode squeezed states exhibits higher-order squeezing to all even orders, and the degree of higher-order squeezing is greater than that of the second-order. The higher-order squeezed parameter and squeezed limit due to the modulation frequency are investigated. The smaller the modulation frequency is, the stronger the degree of higher-order squeezing becomes. Furthermore, the higher-order uncertainty relations in two-mode squeezed states are presented for the first time. The product of higher-order noise moments is related to even order number N and the squeeze factor r.
中图分类号: (Quantum state engineering and measurements)