Prospects for Spin-Based Quantum Computing

Abstract

Experimental and theoretical progress toward quantum computation with spins in quantum dots (QDs) is reviewed, with particular focus on QDs formed in GaAs heterostructures, on nanowire-based QDs, and on self-assembled QDs. We report on a remarkable evolution of the field where decoherence, one of the main challenges for realizing quantum computers, no longer seems to be the stumbling block it had originally been considered. General concepts, relevant quantities, and basic requirements for spin-based quantum computing are explained; opportunities and challenges of spin-orbit interaction and nuclear spins are reviewed. We discuss recent achievements, present current theoretical proposals, and make several suggestions for further experiments.

21 pages, 5 figures

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Cited by in corpus (23)

• Fermionic and Majorana Bound States in Hybrid Nanowires with Non-Uniform Spin-Orbit Interaction
• Conductance behavior in nanowires with spin-orbit interaction -- A numerical study
• Coupling of three-spin qubits to their electric environment
• Exchange-based two-qubit gate for singlet-triplet qubits
• Negative spin exchange in a multielectron quantum dot
• Open quantum system description of singlet-triplet qubits in quantum dots
• Charge State Hysteresis in Semiconductor Quantum Dots
• Spin filtering in all-electrical three-terminal interferometers
• Long-range entanglement for spin qubits via quantum Hall edge modes
• Acoustic phonons and strain in core/shell nanowires
• Single-spin manipulation in a double quantum dot in the field of a micromagnet
• Electrical spin orientation, spin-galvanic and spin-Hall effects in disordered two-dimensional systems
• Coherent transport in a linear triple quantum dot made from a pure-phase InAs nanowire
• Detecting nonlocal Cooper pair entanglement by optical Bell inequality violation
• Quantum circuit optimization by topological compaction in the surface code
• NMR Response of Nuclear Spin Helix in Quantum Wires with Hyperfine and Spin-Orbit Interaction
• Symmetry induced hole-spin mixing in quantum dot molecules
• Voltage induced conversion of helical to uniform nuclear spin polarization in a quantum wire
• Spatial compression of a particle state in a parabolic potential by spin measurements
• Electron spin-flip correlations due to nuclear dynamics in driven GaAs double dots
• All-electric single electron spin initialization
• Probe-assisted spin manipulation in one-dimensional quantum dots
• Two-and three-qubit room-temperature graphene quantum gates