Conditional generation scheme for entangled vacuum evacuated coherent states by mixing two coherent beams with a squeezed vacuum state

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• 作者：Sun-Hyun Youn ^{sunyoun@chonnam.ac.kr" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Nonclassical light ; Squeezed state ; Entangled coherent state ; Photonic state engineering
• 刊名：Optics Communications
• 出版年：2016
• 出版时间：1 August 2016
• 年：2016
• 卷：372
• 期：Complete
• 页码：215-220
• 全文大小：1962 K

文摘

Conditions to generate high-purity entangled vacuum-evacuated coherent states (|0>|α>⁰−|−α>⁰|0>)$\left(\right|0>|\alpha {>}^0-|-\alpha {>}^0|0>)$ were studied for two cascade-placed beam splitters, with one squeezed state input and two coherent state inputs whenever a single photon is detected. Controlling the amplitudes and the phases of the beams allows for various amplitudes of the vacuum-evacuated coherent states (|α>⁰=|α>−e^−|α|2|0>)$\left(\right|\alpha {>}^0=|\alpha >-e^{-|\alpha {|}^2}|0>)$ up to α=2.160$\alpha =2.160$ to be manipulated with high-purity.