Coherence of an optically illuminated single nuclear spin qubit

Abstract

We investigate the coherence properties of individual nuclear spin quantum bits in diamond [Dutt et al., Science, 316, 1312 (2007)] when a proximal electronic spin associated with a nitrogen-vacancy (NV) center is being interrogated by optical radiation. The resulting nuclear spin dynamics are governed by time-dependent hyperfine interaction associated with rapid electronic transitions, which can be described by a spin-fluctuator model. We show that due to a process analogous to motional averaging in nuclear magnetic resonance, the nuclear spin coherence can be preserved after a large number of optical excitation cycles. Our theoretical analysis is in good agreement with experimental results. It indicates a novel approach that could potentially isolate the nuclear spin system completely from the electronic environment.

5 pages, 2 figures

References in corpus (13)

• Observation of coherent oscillation of a single nuclear spin and realization of a two-qubit conditional quantum gate
• The nitrogen-vacancy center in diamond re-visited
• Room temperature coherent control of coupled single spins in solid
• Fault-tolerant Quantum Communication with Minimal Physical Requirements
• Distributed Quantum Computation Based-on Small Quantum Registers
• Decoherence and 1/f noise in Josephson qubits
• Fault-tolerant quantum repeaters with minimal physical resources, and implementations based on single photon emitters
• Polarization and readout of coupled single spins in diamond
• Low-frequency noise as a source of dephasing of a qubit
• Non-Gaussian low-frequency noise as a source of qubit decoherence
• Optical atomic coherence at the one-second time scale
• Decoherence of a qubit by non-Gaussian noise at an arbitrary working point
• Sideband cooling while preserving coherences in the nuclear spin state in group-II-like atoms

Cited by in corpus (40)

• Hybrid quantum circuits: Superconducting circuits interacting with other quantum systems
• Unconditional quantum teleportation between distant solid-state qubits
• Entanglement Distillation between Solid-State Quantum Network Nodes
• Ab initio supercell calculations on nitrogen-vacancy center in diamond: its electronic structure and hyperfine tensors
• Repeated quantum error correction on a continuously encoded qubit by real-time feedback
• Scalable Architecture for a Room Temperature Solid-State Quantum Information Processor
• Robust multi-qubit quantum network node with integrated error detection
• Demonstration of entanglement-by-measurement of solid state qubits
• Alkaline-Earth-Metal Atoms as Few-Qubit Quantum Registers
• Quantum systems under frequency modulation
• Quantum many-body theory for electron spin decoherence in nanoscale nuclear spin baths
• Motional Averaging in a Superconducting Qubit
• Manipulating a qubit through the backaction of sequential partial measurements and real-time feedback
• Robust quantum-network memory using decoherence-protected subspaces of nuclear spins
• Long-term data storage in diamond
• Coherence and control of quantum registers based on electronic spin in a nuclear spin bath
• Local and bulk 13C hyperpolarization in NV-centered diamonds at variable fields and orientations
• Time-averaging within the excited state of the nitrogen-vacancy centre in diamond
• Nonvolatile quantum memory enables sensor unlimited nanoscale spectroscopy of finite quantum systems
• Hybrid solid state qubits: the powerful role of electron spins
• Single-Shot Readout of a Nuclear Spin Weakly Coupled to a Nitrogen-Vacancy Center
• Ramsey interferences and spin echoes from electron spins inside a levitating macroscopic particle
• Decoherence of spin qubits due to a nearby charge fluctuator in gate-defined double dots
• A Charge and Spin Readout Scheme For Single Self-Assembled Quantum Dots
• Delayed entanglement echo for individual control of a large number of nuclear spins
• The diamond Nitrogen-Vacancy center as a probe of random fluctuations in a nuclear spin ensemble
• Dynamically Polarizing Spin Register of NV Centers in Diamond using Chopped Laser Pulses
• Could one make a diamond-based quantum computer?
• Efficient entanglement of spin qubits mediated by a hot mechanical oscillator
• Quantum State Engineering using Single Nuclear Spin Qubit of Optically Manipulated Ytterbium Atom
• Coherent Microwave Control of a Nuclear Spin Ensemble at Room Temperature
• Protecting solid-state spins from strongly coupled environment
• Quantum Zeno and Zeno-like effects in nitrogen vacancy centers
• Long-range photon-mediated gate scheme between nuclear spin qubits in diamond
• Theory of nuclear spin dephasing and relaxation by optically illuminated nitrogen-vancy center
• Effect of inter-system crossing rates and optical illumination on the polarization of nuclear spins nearby nitrogen-vacancy centers
• Scalable quantum computation based on quantum actuated nuclear-spin decoherence-free qubits
• Local probing of nuclear bath polarization with a single electronic spin
• Silicon T centre hyperfine structure and memory protection schemes
• Stability of superconducting resonators: motional narrowing and the role of Landau-Zener driving of two-level defects