本文讨论了由一对相干态|α)和|-α)而产生的叠加相干态(薛定谔猫态)在具有阻尼的情况下压缩特性随时间的演化,特别讨论了场的高阶压缩性质受阻尼的影响.在场模形成的初始阶段,高阶压缩性质是不稳定的,高阶压缩参量将随时间出现振荡,场态将出现几次压缩和非压缩的交替变化.随时间的推移,场的压缩状态终将趋于稳定,压缩参量的绝对值减小并趋于零.阻尼的增加将加快这一演化过程,并且阻尼将削弱压缩.
参考文献
| [1] | Buzek V, Knight P L. The origin of squeezing in a superposition of coherent state [J]. Opt. Commu., 1991, 81(5):331～336 |
| [2] | Gea-Banacloche J. Atom-and field-state evolution in the Jaynes-Cummings model for large initial fields [J]: Phys.Rev. A, 1991, 44(9): 5913～5931 |
| [3] | Schleich W, Pemigo M, Fam L K. Nonclassical state from two pseudoclassical states [J]. Phys. Rev. A, 1991, 44(3):2172～2187 |
| [4] | Buzek V, Vidiela-Barranco A, Knight P L. Superposition of coherent states: Squeezing and dissipation [J]. Phys.Rev,. A, 1992, 45(9): 6570～6585 |
| [5] | Hillery M. Amplitude-squard squeezing of the electromagnetic field [J]. Phys. Rev. A, 1987, 36(8): 3796～3802 |
| [6] | Yurke B, Stoler D. Generating quantum mechanical superpositions of macroscopically distinguishable states [J].Phys. Rev. Lett., 1986, 57(1): 13～16 |
| [7] | Pur R R, Agarwal G S. Collapse and revival phenomena in the Jaynes-Cummings model with cavity damping [J].Phys. Rev. A, 1986, 33(5): 3610～3613 |
| [8] | Phoenix, Simon J D. Wave-packet evolution in the damped oscillator [J]. Phys. Rev. A, 1990, 41(9): 5132～5138 |
| [9] | Barnett S M, Knight P L. Dissipation in a fundamental model of quantum optical resonance [J]. Phys. Rev. A,1986, 33(4): 2444～2448 |
| [10] | .Hong C K, Mandel L. Generation of higher-order squeezing of quantum electromagnetic fields [J]. Phys. Rev. A,1985, 32(2): 974～982 |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%