Open AccessPreparation of controllable three-mode entangled coherent states
Author(s) -
Qu Zhao-Jun,
XiaoGuang Ma,
Xiping Xu,
ChuanLu Yang
Publication year - 2012
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.61.034206
Subject(s) - coherent states , physics , field (mathematics) , mode (computer interface) , basis (linear algebra) , state (computer science) , operator (biology) , transformation (genetics) , quantum mechanics , phase (matter) , quantum entanglement , w state , quantum , computer science , mathematics , geometry , operating system , biochemistry , chemistry , algorithm , repressor , transcription factor , pure mathematics , gene
For a system composed of a three-mode cavity field interacting with a movable mirror, the time evolution operator of the system and its transformation are given, and the time evolution of the system state is obtained by means of quantum theory. The result shows that the state of the three-mode cavity field is in an entangled coherent state when the mirror returns to its original state, and the preparations of different entangled coherent states can be controlled. Nine different three-mode entangled coherent states are given, and the different phase factors of these states indicate the different reactions between the field and the movable mirror, which provides an important theoretical basis for the experimental preparations of controllable entangled coherent states.