Electron spin rotations induced by oscillating Rashba interaction in a quantum wire

Abstract

A novel method and nanodevice are introduced that allows to rotate the single electron spin confined in a gated electrostatic InSb nanowire quantum dot. Proposed method does not require application of any (oscillating or static) external magnetic fields. Our proposal instead employs spatial and time modulation of confining potential induced by electric gates, which, in turn leads to oscillating Rashba type spin-orbit coupling. Moving electron back and forth in such a variable Rashba field allows for realization of spin rotations around two different axes separately without using an external magnetic field. The results are supported by realistic three-dimensional time dependent Poisson-Schrödinger calculations for systems and material parameters corresponding to experimentally accessible structures.

9 pages, 14 figures

References in corpus (25)

• Non-Abelian Anyons and Topological Quantum Computation
• Signatures of Majorana fermions in hybrid superconductor-semiconductor nanowire devices
• Majorana Fermions and a Topological Phase Transition in Semiconductor-Superconductor Heterostructures
• Evidence of Majorana fermions in an Al - InAs nanowire topological superconductor
• Observation of Majorana Fermions in a Nb-InSb Nanowire-Nb Hybrid Quantum Device
• Driven coherent oscillations of a single electron spin in a quantum dot
• Coherent control of a single electron spin with electric fields
• An addressable quantum dot qubit with fault-tolerant control fidelity
• Topological Phases of Noncentrosymmetric Superconductors: Edge States, Majorana Fermions, and the Non-Abelian Statistics
• Demonstration of Entanglement of Electrostatically Coupled Singlet-Triplet Qubits
• Prospects for Spin-Based Quantum Computing
• Towards a realistic transport modeling in a superconducting nanowire with Majorana fermions
• Direct Measurement of the Spin-Orbit Interaction in a Two-Electron InAs Nanowire Quantum Dot
• Hyperfine-mediated gate-driven electron spin resonance
• Transition from fractional to Majorana fermions in Rashba nanowires
• Spin-orbit interaction in InSb nanowires
• Spin-Orbit Mediated Control of Spin Qubits
• Majorana End-States in Multi-band Microstructures with Rashba Spin-Orbit Coupling
• Fast Electrical Control of Single Electron Spins in Quantum Dots with Vanishing Influence from Nuclear Spins
• Fermionic and Majorana Bound States in Hybrid Nanowires with Non-Uniform Spin-Orbit Interaction
• Fast and robust spin manipulation in a quantum dot by electric fields
• Conductance behavior in nanowires with spin-orbit interaction -- A numerical study
• Geometric phases in semiconductor spin qubits: Manipulations and decoherence
• Spin rotations induced by electron running on closed trajectories in gated semiconductor nanodevices
• Quantum dot defined in two-dimensional electron gas at n-AlGaAs/GaAs heterojunction: simulation of electrostatic potential and charging properties

Cited by in corpus (14)

• Valley qubit in gated MoS${}_2$ monolayer quantum dot
• Spin-valley system in a gated MoS${}_2$-monolayer quantum dot
• Valley two-qubit system in a MoS${}_2$-monolayer gated double quantum dot
• Generation of Schrödinger's cat states in a planar semiconductor heterostructure
• Generation of spin-dependent coherent states in a quantum wire
• Exact analysis of gate noise effects on non-adiabatic transformations of spin-orbit qubits
• Exact spin-orbit qubit manipulation
• All-electric single electron spin initialization
• Thermal effects on a nonadiabatic spin-flip protocol of spin-orbit qubits
• Ultrafast spin initialization in a gated InSb nanowire quantum dots
• Spin-selective resonant tunneling induced by Rashba spin-orbit interaction in semiconductor nanowire
• Controlling spin without magnetic fields -- the Bloch-Rashba rotator
• Effects of noise on fidelity in spin-orbit qubit transformations
• All-electric single electron spin-to-charge conversion