标题： 在Su-Schrieffer-Heeger系统中动态制备鲁棒的贝尔态 显示英文标题

标题： Dynamically Preparing Robust Bell States in Su-Schrieffer-Heeger Systems

摘要： 量子纠缠对于现代量子信息处理至关重要。纠缠门通过应用时间依赖的参数脉冲，将初始非纠缠态转换为纠缠态。虽然贝尔态制备已在各种平台上实验验证，但其稳定性和保真度受到环境退相干和参数波动的限制。在此，我们提出了一种动态框架，通过利用Su-Schrieffer-Heeger (SSH)系统中的时间边界工程和动量空间投影测量来制备鲁棒的贝尔态。采用Lindblad主方程，我们理论证明了制备的贝尔态对环境退相干和参数时间波动表现出显著的鲁棒性，实现了几乎完美的量子保真度，动量守恒定律支配这种鲁棒行为。为了在动量空间中丰富贝尔态，设计了多带SSH模型以诱导多倍时间散射过程。这种时间边界工程框架适用于费米子和玻色子激发，为量子通信和量子计算中生成贝尔态提供了一个鲁棒的范式。 显示英文摘要

摘要： Quantum entanglement is essential for modern quantum information processing. Entanglement gates convert initially non-entangled states into entangled ones by applying time-dependent parametric pulses. While Bell state preparation has been experimentally validated in various platforms, its stability and fidelity are constrained by environmental decoherence and parametric fluctuations.Here, we propose a dynamical framework for preparing robust Bell states by leveraging time-boundary engineering and momentum-space projective measurements within Su-Schrieffer-Heeger (SSH) systems. Employing Lindblad master equation, we theoretically demonstrate that the prepared Bell states exhibit remarkable robustness against both environmental decoherence and parametric time fluctuations, achieving a nearly perfect quantum fidelity, with momentum conservation law governing this robust behavior. To enrich Bell states in momentum space, multi-band SSH models are designed to induce multifold time scattering processes. This time-boundary engineering framework is applicable to both fermionic and bosonic excitations, offering a robust paradigm for generating Bell states in quantum communication and quantum computation.