Hydrogenic Spin Quantum Computing in Silicon: A Digital Approach

Abstract

We suggest an architecture for quantum computing with spin-pair encoded qubits in silicon. Electron-nuclear spin-pairs are controlled by a dc magnetic field and electrode-switched on and off hyperfine interaction. This digital processing is insensitive to tuning errors and easy to model. Electron shuttling between donors enables multi-qubit logic. These hydrogenic spin qubits are transferable to nuclear spin-pairs, which have long coherence times, and electron spin-pairs, which are ideally suited for measurement and initialization. The architecture is scalable to highly parallel operation.

4 pages, 5 figures; refereed and published version with improved introduction

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Cited by in corpus (83)

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• Entanglement in a Solid State Spin Ensemble
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• Coherence of Spin Qubits in Silicon
• Quantum Circuit Placement
• Dangling-bond spin relaxation and magnetic 1/f noise from the amorphous-semiconductor/oxide interface: Theory
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• Electron spin coherence and electron nuclear double resonance of Bi donors in natural Si
• Non-Markovian reduced dynamics and entanglement evolution of two coupled spins in a quantum spin environment
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• Quantum control of donor electrons at the Si-SiO2 interface
• Stark Tuning of Donor Electron Spins in Silicon
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• Global control and fast solid-state donor electron spin quantum computing
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• Entanglement of Two Impurities through Electron Scattering
• Charge qubits in semiconductor quantum computer architectures: Tunnel coupling and decoherence
• Orbital Stark effect and quantum confinement transition of donors in silicon
• Ion Implantation for Deterministic Single Atom Devices
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• Quantum state transfer and time-dependent disorder in Quantum Chains
• Spin Qubit Relaxation in a Moving Quantum Dot
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• Coherent electron transport by adiabatic passage in an imperfect donor chain
• Nuclear Spins as Quantum Memory in Semiconductor Nanostructures
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• Gate-induced ionization of single dopant atoms
• Double quantum dot turnstile as an electron spin entangler
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• Generation of quantum logic operations from physical Hamiltonians
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• Electrical readout of a spin qubit without double occupancy
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• Single-qubit operations in the double-donor structure driven by strongly detuned optical pulses
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• A theoretical investigation into the microwave spectroscopy of a phosphorus-donor charge-qubit in silicon: Coherent control in the Si:P quantum computer architecture
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• Direct observation by resonant tunneling of the B^+ level in a delta-doped silicon barrier
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