Spin interactions, relaxation and decoherence in quantum dots

Abstract

We review recent studies on spin decoherence of electrons and holes in quasi-two-dimensional quantum dots, as well as electron-spin relaxation in nanowire quantum dots. The spins of confined electrons and holes are considered major candidates for the realization of quantum information storage and processing devices, provided that sufficently long coherence and relaxation times can be achieved. The results presented here indicate that this prerequisite might be realized in both electron and hole quantum dots, taking one large step towards quantum computation with spin qubits.

12 pages, 5 figures

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Cited by in corpus (30)

• Spin dynamics in semiconductors
• Quantum Decoherence
• Prospects for Spin-Based Quantum Computing
• CNOT and Bell-state analysis in the weak-coupling cavity QED regime
• Environmental noise spectroscopy with qubits subjected to dynamical decoupling
• Three-electron spin qubits
• Optimal operation points for ultrafast, highly coherent Ge hole spin-orbit qubits
• Hole spin qubits in Si FinFETs with fully tunable spin-orbit coupling and sweet spots for charge noise
• Coherent state transfer via highly mixed quantum spin chains
• Charge and spin dynamics in interacting quantum dots
• Hyperfine interactions in two-dimensional HgTe topological insulators
• Large nuclear spin polarization in gate-defined quantum dots using a single-domain nanomagnet
• Shortcuts to Dynamic Polarization
• All-electrical control of hole singlet-triplet spin qubits at low leakage points
• Collective Nuclear Stabilization by Optically Excited Hole in Quantum Dot
• The dynamics of two entangled qubits exposed to classical noise: role of spatial and temporal noise correlations
• Environment Assisted Metrology with Spin Qubit
• Spin-orbit induced hole spin relaxation in InAs and GaAs quantum dots
• Cavity Control over Heavy-Hole Spin Qubits in Inversion-Symmetric Crystals
• A quantum interface between light and nuclear spins in quantum dots
• The relation between the quantum discord and quantum teleportation: the physical interpretation of the transition point between different quantum discord decay regimes
• Cumulative generation of maximal entanglement between spectrally distinct qubits using squeezed light
• Quantum memory assisted precision rotation sensing
• Dynamic Nuclear Polarization from Topological Insulator Helical Edge States
• Nonmonotonic buildup of spin-singlet correlations in a double quantum dot
• Decoherence: From Interpretation to Experiment
• Engineered spin phase diagram of two interacting electrons in semiconductor nanowire quantum dots
• Multistability and spin diffusion enhanced lifetimes in dynamic nuclear polarization in a double quantum dot
• Co-tunneling current through the two-level quantum dot coupled to magnetic leads: A role of exchange interaction
• Partial thermalisation of a two-state system coupled to a finite quantum bath