The stable entanglement properties of cavity optomechanical system induced by cascade atoms
XIAO Rui-jie
LIU Ye
LI Dan
XIU Xiao-ming
Abstract：The paper proposes a theory scheme for the three -level cascade atoms coupled to two -mode cavities.Employing the quantum Langevin equation and the linear approximation theory , the steady state of the hybrid system was obtained .Meanwhile , the stable entanglement of optomechanical system was numerically sim-ulated by employing the logarithmic negativity as the measure of entanglement .The results show that the entan-glement result from the atomic coherence , if the parameters is suitable , the two-mode fields as well as the mir-ror and cavity mode are all entangled even for bad cavity limits .At he same time , the results indicate that the larger value of the injection rate of the atoms , the larger entanglement of the two cavities as well as the mirror and cavity mode .
Keywords：cavity optomechanical systemHamiltonianLangevin equationstable entanglement
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 114-118 )