Superconducting single-mode contact as a microwave-activated quantum interferometer

Abstract

The dynamics of a superconducting quantum point contact biased at subgap voltages is shown to be strongly affected by a microwave electromagnetic field. Interference among a sequence of temporally localized, microwave-induced Landau-Zener transitions between current carrying Andreev levels results in energy absorption and in an increase of the subgap current by several orders of magnitude. The contact is an interferometer in the sense that the current is an oscillatory function of the inverse bias voltage. Possible applications to Andreev-level spectroscopy and microwave detection are discussed.

Cited by in corpus (24)

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• Quantitative verification of the Kibble-Zurek mechanism in quantum non-equilibrium dynamics
• Controlled dephasing of Andreev states in superconducting quantum point-contacts
• Theory of microwave-assisted supercurrent in quantum point contacts
• Cooling of a suspended nanowire by an AC Josephson current flow
• Manipulation with Andreev states in spin active mesoscopic Josephson junctions
• Mirror, mirror: Landau-Zener-Stuckelberg-Majorana interferometry of a superconducting qubit in front of a mirror
• Supercurrent and Andreev bound state dynamics in superconducting quantum point contacts under microwave irradiation
• Two-level Hamiltonian of a superconducting quantum point contact
• Levitons in superconducting point contacts
• Quantifying quantum coherence of multiple-charge states in tunable Josephson junctions
• Hysteresis from nonlinear dynamics of Majorana modes in topological Josephson junctions
• Coherent dynamics of a photon-dressed qubit
• Phonon relaxation of subgap levels in superconducting quantum point contacts
• Non-Equilibrium and Quantum Coherent Phenomena in the Electromechanics of Suspended Nanowires
• Nano-ploughed Josephson Junctions as on-chip Radiation Sources
• Voltage-driven superconducting weak link as a refrigerator for cooling of nanomechanical vibrations
• Impurity-induced dephasing of Andreev states
• Mesoscopic superconductors under irradiation: Microwave spectroscopy of Andreev states
• Rate-equation approach for multi-level quantum systems
• Resonant microwave properties of a voltage-biased single-Cooper-pair transistor