A scheme to realize the accelerated and robust generation of W state in a cavity quantum electrodynamics (QED) system by combining parametric amplification (PA) with inverse Hamiltonian engineering (IHE) is proposed. The atom‐cavity coupling strength can be exponentially enhanced via parametrically squeezing the cavity mode, which facilitates the generation of W state. Moreover, the evolution of the system can be optimized with suppressing the populations of the intermediate states. Numerical simulations show that the scheme is fast and high‐fidelity, immune to systematic parameter deviations, robust against spontaneous emission of atoms, and decay of cavities. Therefore, this scheme may provide some useful applications in entanglement generation.

中文翻译：

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通过参数放大和哈密顿逆工程加速并稳定地产生W状态

提出了一种将参量放大（PA）与哈密顿逆工程（IHE）相结合的方法，在腔量子电动力学（QED）系统中实现W状态的加速和鲁棒生成。通过参量压缩腔模，可以以指数方式提高原子-腔耦合强度，这有利于W态的产生。此外，可以通过抑制中间状态的总体来优化系统的演化。数值模拟表明，该方案快速，高保真，不受系统参数偏差的影响，对原子的自发发射和空穴的衰减具有鲁棒性。因此，该方案可以在纠缠产生中提供一些有用的应用。