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Wave packet shaping for a single-photon source
Journal of the Optical Society of America B ( IF 1.9 ) Pub Date : 2021-02-10 , DOI: 10.1364/josab.410445
Azadeh Ahmadian , Rasoul Malekfar

For the realization of a quantum network and efficient transfer of information between its nodes, many challenges should be resolved. One of these challenges is related to controlling photons, in that receiving and resending data in a real-time process should be reliable. The uncontrollable and time asymmetry shape of the photon wave packets emitted by quantum sources creates obstacles for reliable information transfer. In this work, an approach has been introduced to tune the wave packet shape of a single photon as a significant factor for absorbing and resending the same information. Since the wave packet of the photon emitted from spontaneous emission cannot be handled, in this research for the wave packet shaping, two lasers with a phase difference between them are proposed, where Rabi frequency $\Omega (t)$ is considered as a time-dependent function. Studying the temporal evolution of the system states and using the experimental parameters of a real single photon are two steps employed in this paper to achieve the desired outcome. Furthermore, the fidelity of two distant nodes, between which information is transmitted by the proposed single photon, is examined.

中文翻译:

单光子源的波包整形

为了实现量子网络并在其节点之间有效地传递信息,应解决许多挑战。这些挑战之一与控制光子有关,因为在实时过程中接收和重新发送数据应该是可靠的。量子源发出的光子波包的不可控制和时间不对称形状为可靠的信息传输创造了障碍。在这项工作中,已引入一种方法来调整单个光子的波包形状,将其作为吸收和重新发送相同信息的重要因素。由于无法处理自发发射的光子的波包,因此在此波包整形研究中,提出了两个具有相位差的激光器,其中拉比频率$ \ Omega(t)$被视为与时间有关的函数。研究系统状态的时间演化并使用实际单光子的实验参数是本文中达到所需结果的两个步骤。此外,检查了两个遥远节点的保真度,在两个遥远节点之间,信息由建议的单个光子传输。
更新日期:2021-03-01
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