Entanglement of movable mirror and cavity field enhanced by an optical parametric amplifier

• 作者: 圣宗强 张彩云 李虎 潘桂侠
• 来源期刊: 中国物理B（英文版）
• 关键词: optomechanical system optical parametric amplifier stationary macroscopic entanglement
• 年，卷（期）: 2016,（7）
• 页码范围: 074202-1-074202-4
• 页数: 1页
• 语种: 英文
• DOI: 10.1088/1674-1056/25/7/074202

摘要

A scheme to generate entanglement in a cavity optomechanical system filled with an optical parametric amplifier is proposed. With the help of the optical parametric amplifier, the stationary macroscopic entanglement between the movable mirror and the cavity field can be notably enhanced, and the entanglement increases when the parametric gain increases. Moreover, for a given parametric gain, the degree of entanglement of the cavity optomechanical system increases with increasing input laser power.