Entropy squeezing of the optical field in k-photon Jaynes-Cummings model
Dongpeng Kang, Ren Min, Ma Ai-Qun, Qian Yan, Liu Zheng-jun, Shutian Liu, (1)广州大学工程抗震中心，广州 510405; (2)哈尔滨工业大学物理系，哈尔滨 150001; (3)哈尔滨工业大学物理系，哈尔滨 150001；广州大学城建学院，广州 510900；黑龙江大学物理科学与技术学院，哈尔滨 150080; (4)黑龙江大学物理科学与技术学院，哈尔滨 150080 · Acta Physica Sinica · 2008
We investigated the field entropy squeezing of k-photon Jaynes-Cummings model，discuss the influence of the photon number k and the initial state of the atom on the entropy squeezing. The results show that with the photon numberk increasing，the position entropy squeezing will be enhanced and the momentum entropy squeezing reduced. When k≥3，the position entropy is always squeezed. The initial state of the atom also shows some influence on the entropy squeezing.