Control of Andreev bound state population and related charge-imbalance effect

Abstract

Motivated by recent experimental research, we study the processes in an ac driven superconducting constriction whereby one quasiparticle is promoted to the delocalized states outside the superconducting gap. We demonstrate that with these processes one can control the population of the Andreev bound states in the constriction. We stress an interesting charge asymmetry of these processes that may produce a charge imbalance of accumulated quasiparticles, which depends on the phase.

References in corpus (6)

• Majorana qubit decoherence by quasiparticle poisoning
• Non-Local Correlations in Normal Metal-Superconducting Systems
• Energy decay and frequency shift of a superconducting qubit from non-equilibrium quasiparticles
• Excitation of superconducting qubits from hot non-equilibrium quasiparticles
• Charge imbalance in superconductors in the low-temperature limit
• Theory of microwave-assisted supercurrent in quantum point contacts

Cited by in corpus (4)

• Simple Floquet-Wannier-Stark-Andreev viewpoint and emergence of low-energy scales in a voltage-biased three-terminal Josephson junction
• Dynamical polarization of the fermion parity in a nanowire Josephson junction
• Nonequilibrium Andreev bound states population in short superconducting junctions coupled to a resonator
• Strong effects of weak ac driving in short superconducting junctions