Manipulation with Andreev states in spin active mesoscopic Josephson junctions

Abstract

We investigate manipulation with Andreev bound states in Josephson quantum point contacts with magnetic scattering. Rabi oscillations in the two-level Andreev subsystems are excited by resonant driving the direction of magnetic moment of the scatterer, and by modulating the superconducting phase difference across the contact. The Andreev level dynamics is manifested by temporal oscillation of the Josephson current, accompanied, in the case of magnetic manipulation, also by oscillation of the Andreev states spin polarization. The interlevel transitions obey a selection rule that forbids manipulations in a certain region of external parameters, and results from specific properties of Andreev bound states in magnetic contacts: 4$\pi$-periodicity with respect to the superconducting phase, and strong spontaneous spin polarization.

References in corpus (3)

• Supercurrent reversal in quantum dots
• Controllable pi junction in a Josephson quantum-dot device with molecular spin
• Nondemolition measurements of a single quantum spin using Josephson oscillations

Cited by in corpus (20)

• Quantum information processing with superconducting circuits: a review
• Spin-orbit splitting of Andreev states revealed by microwave spectroscopy
• Microwave spectroscopy of spinful Andreev bound states in ballistic semiconductor Josephson junctions
• Signatures of topological Josephson junctions
• Supercurrent interference in few-mode nanowire Josephson junctions
• Giant shot noise from Majorana zero modes in topological trijunctions
• Zeeman and spin-orbit effects in the Andreev spectra of nanowire junctions
• From fractional solitons to Majorana fermions in a paradigmatic model of topological superconductivity
• Transport and magnetization dynamics in a superconductor/single-molecule magnet/superconductor junction
• Quasiparticle poisoning effects on the dynamics of topological Josephson junctions
• Fermi liquid approach for superconducting Kondo problems
• Building a bigger Hilbert space for superconducting devices, one Bloch state at a time
• Superconductivity-enhanced spin pumping: Role of Andreev resonances
• Ground-state cooling of a suspended nanowire through inelastic macroscopic quantum tunneling in a current-biased Josephson junction
• Josephson dynamics at high transmissions: Perturbation theory
• Superconducting atomic contacts inductively coupled to a microwave resonator
• Magnetic resonance in a singlet-triplet Josephson junction
• Absence of "fractional ac Josephson effect" in superconducting junctions
• Interplay between evanescent scattering modes and finite dispersion in superconducting junctions
• Andreev spin qubit protected by Franck-Condon blockade