Cavity optomechanical systems converting quantum state between photons facilitate the development of scalable quantum information processors. The control of state transfer in such systems require producing fast and robust transfer to the target state with high fidelity. Shortcuts to adiabaticity (STA) has recently been proved a powerful method for performing fast quantum state conversion in optomechanical systems, which is, however, not robust enough against deviations in control parameters. Here a scheme to realize robust photon state transfer in a universal cavity optomechanical system by combining STA with optimal control technique (OCT) is proposed. Minimizing systematic error sensitivities with adjustable optimization parameters allows to control simultaneously the transfer speed, fidelity, and robustness against errors. Numerical results show that the optimized scheme is insensitive to deviations in optomechanical coupling and frequency detuning over a broad range. The effects of dissipation on the transfer fidelity are also examined for practical implementation of the scheme in realistic scenarios.

中文翻译：

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光学机械系统中鲁棒光子状态转移的最优控制

在光子之间转换量子态的腔光学机械系统促进了可伸缩量子信息处理器的发展。在这样的系统中，状态转移的控制要求以高保真度快速且稳定地转移到目标状态。绝热快捷方式（STA）最近已被证明是一种在光机械系统中执行快速量子态转换的有效方法，但是，对于控制参数的偏差而言，这种方法不够鲁棒。提出了一种将STA与最优控制技术（OCT）相结合的通用腔光机系统中实现鲁棒光子状态转移的方案。使用可调的优化参数将系统错误敏感性降至最低，可以同时控制传输速度，保真度和针对错误的鲁棒性。数值结果表明，该优化方案对光机械耦合和频率失谐的偏差不敏感。还在实际情况下检查了耗散对传输保真度的影响，以实现该方案的实际实施。