Nuclear Spin Dynamics in Double Quantum Dots: Fixed Points, Transients, and Intermittency

Abstract

Transport through spin-blockaded quantum dots provides a means for electrical control and detection of nuclear spin dynamics in the host material. Although such experiments have become increasingly popular in recent years, interpretation of their results in terms of the underlying nuclear spin dynamics remains challenging. Here we point out a fundamental process in which nuclear spin dynamics can be driven by electron shot noise; fast electric current fluctuations generate much slower nuclear polarization dynamics, which in turn affect electron dynamics via the Overhauser field. The resulting extremely slow intermittent current fluctuations account for a variety of observed phenomena that were not previously understood.

version accepted for publication in Physical Review B, figure repaired

References in corpus (9)

• Universal quantum control of two-electron spin quantum bits using dynamic nuclear polarization
• Suppression of spin relaxation in an InAs nanowire double quantum dot
• Measurement of Temporal Correlations of the Overhauser Field in a Double Quantum Dot
• Large nuclear Overhauser fields detected in vertically-coupled double quantum dots
• Dynamic Nuclear Polarization in Double Quantum Dots
• Stationary and transient leakage current in the Pauli spin blockade
• Spin relaxation in quantum dots due to electron exchange with leads
• Dynamical nuclear spin polarization induced by electronic current through double quantum dots
• Magnetic field induced effects in the high source-drain bias current of weakly coupled vertical quantum dot molecules

Cited by in corpus (23)

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• Randomized benchmarking of barrier versus tilt control of a singlet-triplet qubit
• Large nuclear spin polarization in gate-defined quantum dots using a single-domain nanomagnet
• Filter function formalism beyond pure dephasing and non-Markovian noise in singlet-triplet qubits
• Footprints of hyperfine, spin-orbit, and decoherence effects in Pauli spin blockade
• Steady-State Entanglement in the Nuclear Spin Dynamics of a Double Quantum Dot
• Nuclear Spin Dynamics in Double Quantum Dots: Multi-Stability, Dynamical Polarization, Criticality and Entanglement
• Noise filtering of composite pulses for singlet-triplet qubits
• Electrical current and coupled electron-nuclear spin dynamics in double quantum dots
• Suppression of Zeeman gradients by nuclear polarization in double quantum dots
• Hanle effect in (In,Ga)As quantum dots: Role of nuclear spin fluctuations
• Benchmarking of dynamically corrected gates for the exchange-only spin qubit in $1/f$ noise environment
• Self-sustaining dynamical nuclear polarization oscillations in quantum dots
• Temperature-dependent dynamical nuclear polarization bistabilities in double quantum dots in the spin-blockade regime
• Semiclassical spin-spin dynamics and feedback control in transport through a quantum dot
• Spin-qubit noise spectroscopy from randomized benchmarking by supervised learning
• Robust entangling gate for capacitively coupled few-electron singlet-triplet qubits
• Classical information driven quantum dot thermal machines
• Role of dual nuclear baths on spin blockade leakage current bistabilities
• Self-sustained current oscillations in spin-blockaded quantum dots
• Multistability and spin diffusion enhanced lifetimes in dynamic nuclear polarization in a double quantum dot
• Dynamical nuclear spin polarization in a quantum dot with an electron spin driven by electric dipole spin resonance