纠缠相干态及其非经典特性  

Entangled coherent states and their nonclassical effects

作　　者：夏云杰[1] 高德营[1] 

机构地区：[1]曲阜师范大学物理工程学院,曲阜273165

出　　处：《物理学报》2007年第7期3703-3708,共6页Acta Physica Sinica

基　　金：国家自然科学基金重点项目(批准号:10534030)资助的课题.~~

摘　　要：通过引入正交基矢,连续变量形式的纠缠相干态转化成分立形式,然后用concurrence方法计算了纠缠度,同时研究了其非经典效应(压缩效应,反聚束效应).发现纠缠总是伴随着压缩效应和反聚束效应两者之一,并随相应非经典效应的增大而增大.By introducing orthogonal basis, the entangled coherent states are converted to discrete ones. We calculate their entanglement by concurrence their nonclassical effects, such as squeezing and antibunching. We find that the entanglement always follows either one of squeezing or antibunching and the entanglement increases with the increase of one of the nonclassical effects.

关 键 词：纠缠 非经典效应 CONCURRENCE 

分 类 号：O413.1[理学—理论物理]