Collective Nuclear Stabilization by Optically Excited Hole in Quantum Dot

Abstract

We propose that an optically excited heavy hole in a quantum dot can drive the surrounding nuclear spins into a quiescent collective state, leading to significantly prolonged coherence time for the electron spin qubit. This provides a general paradigm to combat decoherence by environmental control without involving the active qubit in quantum information processing. It also serves as a unified solution to some open problems brought about by two recent experiments [X. Xu et al., Nature 459, 1105 (2009) and C. Latta et al., Nature Phys. 5, 758 (2009)].

4 pages, 3 figures

References in corpus (17)

• Quantum Computing
• Spin decoherence of a heavy hole coupled to nuclear spins in a quantum dot
• Enhancing the Coherence of a Spin Qubit by Operating it as a Feedback Loop That Controls its Nuclear Spin Bath
• Hyperfine-mediated gate-driven electron spin resonance
• Hole - Nuclear Spin Interaction in Quantum Dots
• Preserving qubit coherence by dynamical decoupling
• Quantum computing by optical control of electron spins
• Direct measurement of the hole-nuclear spin interaction in single quantum dots
• Dynamic nuclear spin polarization in resonant laser spectroscopy of a quantum dot
• Stabilizing effect of nuclear quadrupole interaction on the polarization of electron-nuclear spin system in a quantum dot
• Hybridization and spin decoherence in heavy-hole quantum dots
• Spin interactions, relaxation and decoherence in quantum dots
• Pulsed Nuclear Pumping and Spin Diffusion in a Single Charged Quantum Dot
• Nuclear spin cooling using Overhauser field selective coherent population trapping
• Electrically-Driven Reverse Overhauser Pumping of Nuclear Spins in Quantum Dots
• Nuclear Tuning and Detuning of the Electron Spin Resonance in a Quantum Dot
• Non-ideality of quantum operations with the electron spin of a 31P donor in a Si crystal due to interaction with a nuclear spin system

Cited by in corpus (18)

• Quantum many-body theory for electron spin decoherence in nanoscale nuclear spin baths
• Theory of dynamic nuclear polarization and feedback in quantum dots
• Strong Hyperfine-Induced Modulation of an Optically-Driven Hole Spin in an InAs Quantum Dot
• General theory of feedback control of a nuclear spin ensemble in quantum dots
• Sub-Kelvin optical thermometry of an electron reservoir coupled to a self-assembled InGaAs quantum dot
• Spin noise of localized electrons interacting with optically cooled nuclei
• Voltage control of electron-nuclear spin correlation time in a single quantum dot
• Narrowing of the Overhauser field distribution by feedback-enhanced dynamic nuclear polarization
• Strongly polarizing weakly coupled ${}^{13}$C nuclear spins with optically pumped nitrogen-vacancy center
• Two-laser dynamic nuclear polarization with semiconductor electrons: feedback, suppressed fluctuations, and bistability near two-photon resonance
• Driven dynamics of a quantum dot electron spin coupled to bath of higher-spin nuclei
• Nuclear spin polarization in a single quantum dot pumped by two laser beams
• Inhomogeneous dynamic nuclear polarization and suppression of electron-polarization decay in a quantum dot
• Real-time monitoring of Lévy flights in a single quantum system
• Dynamical polarization of nuclear spins by acceptor-bound holes in a zinc blende semiconductor
• Direct high resolution resonant Raman scattering measurements of InAs quantum dot dynamic nuclear spin polarization states
• Dynamical nuclear spin polarization in a quantum dot with an electron spin driven by electric dipole spin resonance
• Quantifying electron-nuclear spin entanglement dynamics in central-spin systems using one-tangles