Optimal generation of entangled states is of critical significance for robust quantum information processing. An effective scheme is presented for speeding up the generation of an entangled state between a superconducting qubit and microwave photons via counterdiabatic driving. At a magic bias point, the first three levels of a charge‐phase quantum circuit constitute an effective qutrit. An entangled state based on adiabatic population transfer is first achieved. By the technique of shortcuts to adiabaticity, a counterdiabatic driving is applied to the qutrit, which then accelerates the entanglement generation significantly. Moreover, with the accessible decoherence rates, the rapid operations in a shortcut way are highly robust when compared with adiabatic manipulations. The scheme could offer a promising approach toward optimal preparation of entangled states with superconducting artificial atoms in circuit quantum electrodynamics, experimentally.

中文翻译：

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通过反绝热驱动加速超导量子位和腔光子之间纠缠态的产生

纠缠态的最佳生成对于鲁棒的量子信息处理至关重要。提出了一种有效的方案，用于通过反绝热驱动来加速超导量子位和微波光子之间纠缠态的产生。在魔术偏置点，电荷相位量子电路的前三个电平构成有效的qutrit。首先实现了基于绝热种群转移的纠缠态。通过绝热捷径技术，将反绝热驱动应用于qutrit，从而显着加速了纠缠的产生。此外，与绝热操作相比，具有可访问的退相干率，以快捷方式进行的快速操作具有很高的鲁棒性。