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论文类型：期刊论文

发表时间：2018-06-19

发表刊物：EUROPEAN PHYSICAL JOURNAL D

收录刊物：SCIE

卷号：72

期号：6

ISSN号：1434-6060

摘要：A scheme of weak force detection in coupled oscillator optomechanical system has been proposed. By introducing the auxiliary oscillator, we can improve the sensitivity, reduce the additional noise and enlarge the intensity of the output spectrum. Different with employing squeezing light to directly reduce shot noise, our method make use of destructive coherence effect between the cavity field and the additional oscillator to cancel the cavity noise, which provides us a alternatively promising platform for improving the sensitivity of ultrasensitive detection in optomechanical system.