Photon blockade in a system consisting of two optomechanical cavities via photon hopping
Photon blockade in a system consisting of two optomechanical cavities via photon hopping
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DOI：
10.1140/epjp/s13360-021-01272-8
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发表时间：
2021-03
期刊：
影响因子：
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通讯作者：
M. H. Nadiki;M. Tavassoly
中科院分区：
文献类型：
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作者：
M. H. Nadiki;M. Tavassoly
光子阻断效应是一种新的效应，在光通信和量子信息处理等许多科学领域具有潜在的应用前景。在本文中，我们研究了具有两个耦合光力学腔的系统中的这一现象。每个腔都有一个可移动的镜子，通过耦合常数（光子跳变发生）相互连接。我们从现象学上考虑了光腔损耗对哈密顿系统的影响（使用非厄米哈密顿量）。由于所考虑的泵浦激光强度低，研究仅限于双光子激发的希尔伯特空间态。为了达到本文的目的，在光子统计的研究中，我们分析了腔辐射场的等时间二阶相关函数。结果表明，通过调整两个腔间的光子跳频，可以在不同频率下观察到光子阻滞。此外，通过降低腔衰减速率，二阶相关函数的最小值减小，光子阻塞更容易发生。
Photon blockade is an updated effect having potential application in many scientific fields such as optical communication and quantum information processing. In this paper, we investigate this phenomenon in a system with two coupled optomechanical cavities. Each cavity possesses a movable mirror connected to each other by a coupling constant of(photon hopping occurs). We consider the effect of optical cavity loss on the Hamiltonian system phenomenologically (using a non-Hermitian Hamiltonian). Due to the low intensity of the considered pump laser, the study is limited to Hilbert space states with two-photon excitations. To achieve the purpose of paper, in the study of the photon statistics, we analyze the equal-time second-order correlation functionfor the cavity radiation field. The obtained results show that by tuning the photon hopping rate between the two cavities, photon blockade can be observed at different frequencies. Also, by reducing the cavity decay rate, the minimum of the second-order correlation function decreases, and the photon blockade is more likely to occur.