Charge localization and dynamical spin locking in double quantum dots driven by ac magnetic fields

Abstract

We investigate electron localization and dynamical spin locking induced by ac magnetic fields in double quantum dots. We demonstrate that by tuning the ac magnetic fields parameters, i.e., the field intensity, frequency, and the phase difference between the fields within each dot, coherent destruction of tunneling (and thus charge localization) can be achieved. We show that in contrast with ac electric fields, ac magnetic fields are able to induce spin locking, i.e., to freeze the electronic spin, at certain field parameters. We show how the symmetry of the Hamiltonian determines the quasienergy spectrum which presents degeneracies at certain field parameters, and how it is reflected in the charge and spin dynamics.

5 pages, 5 figures

References in corpus (16)

• Driven coherent oscillations of a single electron spin in a quantum dot
• Coherent control of a single electron spin with electric fields
• Driven quantum transport on the nanoscale
• Dynamical control of matter-wave tunneling in periodic potentials
• Electrically driven single electron spin resonance in a slanting Zeeman field
• Single Particle Tunneling in Strongly Driven Double Well Potentials
• Visualization of Coherent Destruction of Tunneling in an Optical Double Well System
• Inducing Transport in a Dissipation-Free Lattice with Super Bloch Oscillations
• Many-Body Coherent Destruction of Tunneling
• Coherent control of interacting particles using dynamical and Aharonov-Bohm phases
• Instability and control of a periodically-driven Bose-Einstein condensate
• Spin bottleneck in resonant tunneling through double quantum dots with different Zeeman splittings
• Third order correction to localization in a two-level driven system
• Quasienergy spectrum and tunneling current in ac-driven triple quantum dot shuttles
• Dynamical nuclear spin polarization induced by electronic current through double quantum dots
• Determining the electronic triplet-singlet transition probability in double quantum dots: Analogy with the double slit experiment

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• Controlling a Nanowire Spin-Orbit Qubit via Electric-Dipole Spin Resonance
• Floquet engineering of long-range p-wave superconductivity: Beyond the high-frequency limit
• Coupled Landau-Zener-Stuckelberg Quantum Dot Interferometers
• Transport signatures in topological systems coupled to AC fields
• Anomalous Floquet Phases. A resonance phenomena
• Photo-assisted spin transport in double quantum dots with spin-orbit interaction
• Floquet Majorana Fermions in superconducting quantum dots
• Designing adiabatic time-evolution from high frequency bichromatic sources
• Light-matter correlations in Quantum Floquet engineering of cavity quantum materials
• Transport blocking and topological phases using ac magnetic fields