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Title: Single hole spin relaxation probed by fast single-shot latched charge sensing

Journal Article · · Communications Physics
 [1];  [1];  [2];  [2];  [2];  [2];  [3];  [4];  [4]
  1. National Research Council of Canada, Ottawa, ON (Canada). Security and Disruptive Technologies Research Centre; Univ. of Waterloo, ON (Canada). Dept. of Physics and Astronomy
  2. National Research Council of Canada, Ottawa, ON (Canada). Security and Disruptive Technologies Research Centre
  3. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
  4. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States). Center for Integrated Nanotechnologies

Hole spins have recently emerged as attractive candidates for solid-state qubits for quantum computing. Their state can be manipulated electrically by taking advantage of the strong spin-orbit interaction (SOI). Crucially, these systems promise longer spin coherence lifetimes owing to their weak interactions with nuclear spins as compared to electron spin qubits. Here we measure the spin relaxation time T1 of a single hole in a GaAs gated lateral double quantum dot device. We propose a protocol converting the spin state into long-lived charge configurations by the SOI-assisted spin-flip tunneling between dots. By interrogating the system with a charge detector we extract the magnetic-field dependence of T1 ∝ B-5 for fields larger than B = 0.5 T, suggesting the phonon-assisted Dresselhaus SOI as the relaxation channel. This coupling limits the measured values of T1 from ~400 ns at B = 1.5 T up to ~60 μs at B = 0.5 T.

Research Organization:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); National Research Council of Canada, Ottawa, ON (Canada)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE National Nuclear Security Administration (NNSA); Natural Sciences and Engineering Research Council of Canada (NSERC)
Grant/Contract Number:
NA0003525
OSTI ID:
1498473
Report Number(s):
SAND-2019-0391J; 671538
Journal Information:
Communications Physics, Vol. 2; ISSN 2399-3650
Publisher:
Springer NatureCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 15 works
Citation information provided by
Web of Science

References (74)

Measurement of a Heavy-Hole Hyperfine Interaction in InGaAs Quantum Dots Using Resonance Fluorescence journal December 2010
Optically programmable electron spin memory using semiconductor quantum dots journal November 2004
Single-Shot Readout of Electron Spin States in a Quantum Dot Using Spin-Dependent Tunnel Rates journal May 2005
Phonon-Induced Decay of the Electron Spin in Quantum Dots journal June 2004
Measurement, control, and decay of quantum-dot spins journal November 2006
Spin-Orbit Coupling at the Level of a Single Electron journal March 2016
Quantum Computation and Quantum Information book January 2011
Strong hyperfine-induced modulation of an optically driven hole spin in an InAs quantum dot journal February 2014
Landau-Zener-Stückelberg-Majorana Interferometry of a Single Hole journal May 2018
Electron spin coherence exceeding seconds in high-purity silicon journal December 2011
Dispersive measurements of superconducting qubit coherence with a fast latching readout journal February 2006
Hole Spin Coherence in a Ge/Si Heterostructure Nanowire journal May 2014
Consequences of Spin-Orbit Coupling at the Single Hole Level: Spin-Flip Tunneling and the Anisotropic g Factor journal April 2017
Signatures of Hyperfine, Spin-Orbit, and Decoherence Effects in a Pauli Spin Blockade journal November 2016
Enhanced charge detection of spin qubit readout via an intermediate state journal December 2012
Single-Shot Readout of Hole Spins in Ge journal October 2018
Spin decoherence of a heavy hole coupled to nuclear spins in a quantum dot journal October 2008
Hole–spin dephasing time associated with hyperfine interaction in quantum dots journal May 2009
Landau-Zener-Stückelberg Interferometry in Quantum Dots with Fast Rise Times: Evidence for Coherent Phonon Driving journal February 2017
Integrated silicon qubit platform with single-spin addressability, exchange control and single-shot singlet-triplet readout journal October 2018
Hyperfine-phonon spin relaxation in a single-electron GaAs quantum dot journal August 2018
Single-Shot Measurement of Triplet-Singlet Relaxation in a Si / SiGe Double Quantum Dot journal January 2012
Bipolar spin blockade and coherent state superpositions in a triple quantum dot journal February 2013
Pauli blockade in a few-hole PMOS double quantum dot limited by spin-orbit interaction journal November 2016
Coherent electronic transfer in quantum dot systems using adiabatic passage journal December 2004
Electrical Control of Spin Relaxation in a Quantum Dot journal January 2008
Anisotropic Pauli Spin Blockade of Holes in a GaAs Double Quantum Dot journal December 2016
Spin Relaxation and Decoherence of Holes in Quantum Dots journal August 2005
Observation of extremely slow hole spin relaxation in self-assembled quantum dots journal December 2007
Single-shot read-out of an individual electron spin in a quantum dot journal July 2004
Robust Single-Shot Spin Measurement with 99.5% Fidelity in a Quantum Dot Array journal July 2017
Experimental Signature of Phonon-Mediated Spin Relaxation in a Two-Electron Quantum Dot journal March 2007
Positively spin coherent journal February 2008
Tunable Spin Loading and T 1 of a Silicon Spin Qubit Measured by Single-Shot Readout journal April 2011
A germanium hole spin qubit journal September 2018
Hole spin relaxation in quantum dots journal March 2004
Spin-flip transitions between Zeeman sublevels in semiconductor quantum dots journal September 2001
Spins in few-electron quantum dots journal October 2007
Holes avoid decoherence journal November 2011
Quenching of dynamic nuclear polarization by spin–orbit coupling in GaAs quantum dots journal July 2015
Electric Dipole Spin Resonance for Heavy Holes in Quantum Dots journal February 2007
A CMOS silicon spin qubit journal November 2016
Hole spin relaxation in Ge–Si core–shell nanowire qubits journal December 2011
Spin–orbit-induced hole spin relaxation in InAs and GaAs quantum dots journal September 2013
Long-Range Spin Transfer in Triple Quantum Dots journal May 2014
Electric manipulation of electron spin relaxation induced by confined phonons in nanowire-based double quantum dots journal May 2011
Long-distance coherent coupling in a quantum dot array journal April 2013
Optical control of one and two hole spins in interacting quantum dots journal September 2011
Direct Measurement of the Hole-Nuclear Spin Interaction in Single InP / GaInP Quantum Dots Using Photoluminescence Spectroscopy journal January 2011
Allowed and forbidden transitions in artificial hydrogen and helium atoms journal September 2002
Few-hole double quantum dot in an undoped GaAs/AlGaAs heterostructure journal March 2014
Pulsed-gate measurements of the singlet-triplet relaxation time in a two-electron double quantum dot journal October 2005
Hole spin relaxation in semiconductor quantum dots journal February 2005
Ultrafast coherent control and suppressed nuclear feedback of a single quantum dot hole qubit journal August 2011
Optical pumping of a single hole spin in a quantum dot journal January 2008
Suppression of Spin Relaxation in an InAs Nanowire Double Quantum Dot journal July 2007
Spin-Echo Dynamics of a Heavy Hole in a Quantum Dot journal December 2012
Quantum computation and quantum information† journal February 2006
Electrical control of spin relaxation in a quantum dot text January 2007
Hole spin dephasing time associated to hyperfine interaction in quantum dots text January 2009
Disentangling the effects of spin-orbit and hyperfine interactions on spin blockade text January 2010
Electric manipulation of electron spin relaxation induced by confined phonons in nanowire-based double quantum dots text January 2010
Single-shot measurement of triplet-singlet relaxation in a Si/SiGe double quantum dot text January 2011
Hole Spin Coherence in a Ge/Si Heterostructure Nanowire text January 2014
Spin orbit coupling at the level of a single electron text January 2015
A CMOS silicon spin qubit text January 2016
Anisotropic Pauli Spin Blockade of Holes in a GaAs Double Quantum Dot text January 2016
Robust Single-Shot Spin Measurement with 99.5% Fidelity in a Quantum Dot Array text January 2017
Allowed and forbidden transitions in artificial hydrogen and helium atoms text January 2002
Phonon-induced decay of the electron spin in quantum dots text January 2003
Coherent electronic transfer in quantum dot systems using adiabatic passage text January 2004
Manipulation of a single charge in a double quantum dot text January 2004
Measurement, control, and decay of quantum-dot spins text January 2006
Suppression of spin relaxation in an InAs nanowire double quantum dot text January 2007

Cited By (1)

Electrically tunable effective g-factor of a single hole in a lateral GaAs/AlGaAs quantum dot journal December 2019