标题： 通过单光子散射生成BIC的非马尔可夫动力学 显示英文标题

标题： Non-Markovian dynamics of BIC generation via single-photon scattering

摘要： 在两个或多个量子比特系统中，连续体中的束缚态（BICs）的激发是波导量子电动力学平台中纠缠生成和利用的核心。 然而，通过单光子散射生成量子比特对BICs受到这些状态与传播光子有效解耦的事实的阻碍。 我们证明，对一个具有宇称不变性的单光子在量子比特对上的散射，结合量子比特失谐的适当工程化时间变化，不仅可行，而且比基于量子比特激发态弛豫的策略更有效。 使用张量网络方法来模拟所提出的方案，可以将光子延迟包括在碰撞模型中，从而开辟了跟踪整个量子系统（包括量子比特和场）的时间演化可能性，并在非理想情况下高效地实现和表征动力学，这些情况被证明对BIC生成策略是最优的。 显示英文摘要

摘要： The excitation of bound states in the continuum (BICs) in two- or multi-qubit systems lies at the heart of entanglement generation and harnessing in waveguide quantum electrodynamics platforms. However, the generation of qubit pair BICs through single-photon scattering is hindered by the fact that these states are effectively decoupled from propagating photons. We prove that scattering of a parity-invariant single photon on a qubit pair, combined with a properly engineered time variation of the qubit detuning, is not only feasible, but also more effective than strategies based on the relaxation of the excited states of the qubits. The use of tensor network methods to simulate the proposed scheme enables to include photon delays in collision models, thus opening the possibility to follow the time evolution of the full quantum system, including qubits and field, and to efficiently implement and characterize the dynamics in non-ideal cases, which turn out to be optimal for the BIC generation strategy.