Nonclassical effects in a three-level atom one-mode system with arbitrary forms of nonlinearities

✍ Scribed by Abdel-Shafy F. Obada; Mahmoud Abdel-Aty

• Book ID: 104340972
• Publisher: Elsevier Science
• Year: 2003
• Tongue: English
• Weight: 287 KB
• Volume: 329
• Category: Article
• ISSN: 0378-4371
• DOI: 10.1016/s0378-4371(03)00603-4

✦ Synopsis

A general formalism of a three-level atom single-mode system by including arbitrary forms of nonlinearities of both the ÿeld and the intensity-dependent atom-ÿeld coupling is proposed. With an arbitrary initial condition, an exact analytical time-dependent solution is presented. The work here extends previous studies in this context. Under the condition of an initial coherent ÿeld, the atomic-level occupation probability shows the collapse-revival phenomena, which have di erent features with di erent forms of the nonlinearities. We derive an expression for the Pancharatnam phase for the entangled state of the system. It is shown that the Pancharatnam phase explicitly contains information about the statistics of the ÿeld and atomic coherence. Also, the in uences of the nonlinearities on the squeezing phenomenon and the correlation functions are examined.