制备纠缠相干态的准贝尔基(英文)

Optical Preparation of the Quasi-Bell-base of Entangled Coherent States

通过分析光学分束器对相干态光场的作用特点,设计了一套制备纠缠相干态光场的装置.提出了一个制备纠缠相干态的准贝尔基的方案.在这个方案中,通过利用分束器变换和光子探测,可以从已有的一个纠缠相干态出发,制备出一组四个纠缠相干态的准贝尔基.

A setup for generating the entanglement between two coherent states with the same amplitude but a phase difference of ∏.｜α〉 and ｜-α〉 through using beam splitters and photon detectors is designed. A scheme is presented for generating the quasi-Bell-states of entangled coherent states. In this scheme, the two entangled coherent states are used as the essential resource. The process of the generating the quasi-Bell-states of the entangled coherent states are achieved by using the 50/50 symmetric beam splitters and the photon detectors