论文标题
与超导铅相关的相关量子点的淬灭动力学
Quench dynamics of correlated quantum dot proximitized to superconducting lead
论文作者
论文摘要
量子系统突然从固定阶段驱动可以揭示出接近新的最终状态时的非平凡动态。我们在这里研究了这种动力学，以夹在金属和超导导线之间的相关量子点，考虑两种类型的淬灭，实验性可行。特别是，我们检查了近端诱导的电子配对与由库仑库布驱动引起的相关性之间的相互作用。我们讨论了时间依赖性电荷占用率，复杂的顺序参数，瞬态电流，并分析了子段准粒子的演化，这些进化可以在隧道电导中经验观察到。
Quantum system abruptly driven from its stationary phase can reveal nontrivial dynamics upon approaching a new final state. We investigate here such dynamics for a correlated quantum dot sandwiched between the metallic and superconducting leads, considering two types of quenches feasible experimentally. In particular, we examine an interplay between the proximity induced electron pairing with correlations caused by the on-dot Coulomb repulsion. We discuss the time-dependent charge occupancy, complex order parameter, transient currents, and analyze evolution of the subgap quasiparticles which could be empirically observed in the tunneling conductance.
