Control of Spin Blockade by AC Magnetic Fields in Triple Quantum Dots

Abstract

We analyze coherent spin phenomena in triple quantum dots in triangular configuration under crossed DC and AC magnetic fields. In particular, we discuss the interplay between Aharonov-Bohm current oscillations, coherent electron trapping and spin blockade under electron spin resonance conditions. We demonstrate that, for certain field frequencies, AC magnetic fields induce an antiresonant behavior in the current, allowing for both removal and restoration of entangled spin blockaded states by tuning the AC field frequency. Our theoretical predictions indicate how to manipulate spin qubits in a triangular quantum dot array.

4 pages, 5 figures

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• Linear and nonlinear Stark effect in triangular molecule
• Spin-polarized currents in double and triple quantum dots driven by ac magnetic fields
• Superexchange blockade in triple quantum dots
• Nonequilibrium relaxation transport of ultracold atoms
• Phonon-mediated decoherence in triple quantum dot interferometers
• Photon assisted long-range tunneling
• Dark Bell states in tunnel-coupled spin qubits
• Theory of electronic properties and quantum spin blockade in a gated linear triple quantum dot with one electron spin each
• Spin entangled two-particle dark state in quantum transport through coupled quantum dots
• Entanglement switching via the Kondo effect in triple quantum dots
• Channel Blockade in a Two-Path Triple-Quantum-Dot System
• Electron bunching in triple quantum dot interferometers
• Quasienergy spectrum and tunneling current in ac-driven triple quantum dot shuttles
• Two-particle dark state cooling of a nanomechanical resonator
• Flying Spin Qubits in Quantum Dot Arrays Driven by Spin-Orbit Interaction
• Long distance coherent tunneling effect on the charge and heat currents in serially coupled triple quantum dots
• Magnetic Kondo regimes in a frustrated half-filled trimer
• Photo-assisted spin transport in double quantum dots with spin-orbit interaction
• Dike states in multiple quantum dots
• Spin selective transport through Aharonov-Bohm and Aharonov-Casher triple quantum dot systems
• Master equation based steady-state cluster perturbation theory
• Multilevel coherences in quantum dots
• Transport blocking and topological phases using ac magnetic fields
• Charge quenching at defect states in transition metal dichalcogenide-graphene van der Waals heterobilayers
• Functional renormalization group study of parallel double quantum dots: Effects of asymmetric dot-lead couplings
• Pauli Spin Blockade in a Resonant Triple Quantum Dot Molecule
• Circular-polarization sensitive metamaterial based on triple quantum-dot molecules
• Long-range spin transport in asymmetric quadruple quantum dots configurations
• Coherent time-dependent oscillations and temporal correlations in triangular triple quantum dots
• Revealing the internal spin dynamics in a double quantum dot by periodic voltage modulation