Quench dynamics of correlated quantum dot proximitized to superconducting lead

Abstract

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.

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Cited by in corpus (9)

• Dynamical quantum phase transitions in a mesoscopic superconducting system
• Harnessing the natural resonances of time-varying dispersive interfaces
• Transient dynamics of a magnetic impurity coupled to superconducting electrodes: exact numerics versus perturbation theory
• Pair-amplitude dynamics in strongly-coupled superconductor-quantum dot hybrids
• Signatures of Kondo-Majorana interplay in ac response
• Metastability and quantum coherence-assisted sensing in interacting parallel quantum dots
• Transient effects in quantum dots contacted via topological superconductor
• Solution of master equations by fermionic-duality: Time-dependent charge and heat currents through an interacting quantum dot proximized by a superconductor
• Quench dynamics of Fano-like resonances in the presence of the on-dot superconducting pairing