Spin relaxations in semiconductor quantum dots

Abstract

The spin relaxation time due to the electron-acoustic phonon scattering in GaAs quantum dots is studied after the exact diagonalization of the electron Hamiltonian with the spin-orbit coupling. Different effects such as the magnetic field, the quantum dot size, the temperature as well as the electric field on the spin relaxation time are investigated in detail. Moreover, we show that the perturbation method widely used in the literature is inadequate in accounting for the electron structure and therefore the spin relaxation time.

8 pages, 9 figures in eps format

References in corpus (2)

• High temperature spin dephasing in n-typed GaAs quantum wells
• Manipulation of spin dephasing in InAs quantum wires

Cited by in corpus (54)

• Spins in few-electron quantum dots
• Spin dynamics in semiconductors
• Recipes for spin-based quantum computing
• Experimental signature of phonon-mediated spin relaxation
• Quantum computing by optical control of electron spins
• Theory of phonon-induced spin relaxation in laterally coupled quantum dots
• Spin properties of single electron states in coupled quantum dots
• Diffusive and precessional spin dynamics in a two-dimensional electron gas with disorder: a gauge theory view
• Orbital and spin relaxation in single and coupled quantum dots
• Hole spin relaxation in semiconductor quantum dots
• Phonon-induced electron relaxation in weakly-confined single and coupled quantum dots
• Geometric phases in semiconductor spin qubits: Manipulations and decoherence
• Spin-orbit coupling and anisotropic exchange in two-electron double quantum dots
• Spin relaxation under identical Dresselhaus and Rashba coupling strengths in GaAs quantum wells
• Oscillatory spin relaxation rates in quantum dots
• Spin relaxation in quantum dots with random spin-orbit coupling
• Interplay between Zeeman interaction and spin-orbit coupling in a two-dimensional semiconductor system
• Singlet-triplet relaxation in multivalley silicon single quantum dots
• Effect of electron-electron interaction on the phonon-mediated spin relaxation in quantum dots
• Intense terahertz laser fields on a quantum dot with Rashba spin-orbit coupling
• Dominant role of the shear strain induced admixture in spin-flip processes in self-assembled quantum dots
• Reexamination of spin decoherence in semiconductor quantum dots from equation-of-motion approach
• Triplet-singlet relaxation in semiconductor single and double quantum dots
• Optimal geometry of lateral GaAs and Si/SiGe quantum dots for electrical control of spin qubits
• Spin relaxation in diluted magnetic semiconductor quantum dots
• Electron spin relaxation in cubic GaN quantum dots
• Control of spin relaxation in semiconductor double quantum dots
• Singlet-triplet relaxation in SiGe/Si/SiGe double quantum dots
• Electrical control of a spin qubit in InSb nanowire quantum dots: strongly suppressed spin relaxation in high magnetic field
• Nonlinear Spin-Charge Dynamics in a Driven Double Quantum Dot
• Atomistic theory of spin relaxation in self-assembled In${}_{1-x}$Ga${}_x$As/GaAs quantum dots at zero magnetic field
• Spin relaxation in an InAs quantum dot in the presence of terahertz driving fields
• Control of a spin qubit in a lateral GaAs quantum dot based on symmetry of gating potential
• Renormalization of spin-orbit coupling in quantum dots due to Zeeman interaction
• Spin relaxation rates in quasi-one-dimensional coupled quantum dots
• Spin relaxation in CdTe quantum dots with a single Mn atom
• Slow Exciton Spin Relaxation in Single Self-Assembled In${}_{1-x}$Ga${}_x$As/GaAs Quantum Dots
• Spin relaxation in a GaAs quantum dot embedded inside a suspended phonon cavity
• Energy spectra of three electrons in Si/SiGe single and vertically coupled double quantum dots
• Tunneling-related electron spin relaxation in self-assembled quantum-dot molecules
• Coherent spin dynamics in quantum wells in quantizing magnetic field
• Electric manipulation of electron spin relaxation induced by confined phonons in nanowire-based double quantum dots
• Control of spin coherence in semiconductor double quantum dots
• Phonon-induced decoherence of a charge quadrupole qubit
• Energy spectra of three electrons in SiGe/Si/SiGe laterally coupled triple quantum dots
• Singlet-triplet relaxation induced by confined phonons in nanowire-based quantum dots
• Unique Electron Spin Relaxation Induced by Confined Phonons in Nanowire-Based Quantum Dots
• Tuning of the hole spin relaxation time in single self-assembled In${}_{1-x}$Ga${}_x$As/GaAs quantum dots by electric field
• Preparation and Readout of Multielectron High-Spin States in a Gate-Defined GaAs/AlGaAs Quantum Dot
• Spin Hot Spots in Single-Electron GaAs-based Quantum Dots
• Spin-relaxation anisotropy in a nanowire quantum dot with strong spin-orbit coupling
• Non-stationary effects in the coupled quantum dots influenced by the electron-phonon interaction
• Confinement sensitivity in quantum dot singlet-triplet relaxation
• Intrinsic spin dynamics in semiconductor quantum dots