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Title: Effects of charge noise on a pulse-gated singlet-triplet S - T_ qubit

Abstract

Here, we study the dynamics of a pulse-gated semiconductor double-quantum-dot qubit. In our experiments, the qubit coherence times are relatively long, but the visibility of the quantum oscillations is low. We also show that these observations are consistent with a theory that incorporates decoherence arising from charge noise that gives rise to detuning fluctuations of the double dot. Because effects from charge noise are largest near the singlet-triplet avoided level crossing, the visibility of the oscillations is low when the singlet-triplet avoided level crossing occurs in the vicinity of the charge degeneracy point crossed during the manipulation, but there is only modest dephasing at the large detuning value at which the quantum phase accumulates. This theory also agrees with experimental data and predicts that the visibility can be increased greatly by appropriate tuning of the interdot tunneling rate.

Authors:
 [1];  [1];  [2];  [1];  [1];  [2];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1]
  1. Univ. of Wisconsin, Madison, WI (United States). Wisconsin Inst. for Quantum Information
  2. Univ. of Wisconsin, Madison, WI (United States). Wisconsin Inst. for Quantum Information; Sandia National Lab. (SNL-NM), Albuquerque, NM (United States). Center for Computing Research
Publication Date:
Research Org.:
Univ. of Wisconsin, Madison, WI (United States); Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA); US Dept. of Defense; US Army Research Office (ARO); National Science Foundation (NSF); US Department of the Navy, Office of Naval Research (ONR)
OSTI Identifier:
1378096
Alternate Identifier(s):
OSTI ID: 1389128; OSTI ID: 1467460
Report Number(s):
SAND2017-0165J; SAND-2017-0165J
Journal ID: ISSN 2469-9950
Grant/Contract Number:  
FG02-03ER46028; AC04-94AL85000; W911NF-17-1-0274; W911NF-12-1-0607; W911NF-14-1-0080; DMR 0955500; DMR-1206915; PHY-1104660; N00014-15-1-0029; DMR-1121288
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review B
Additional Journal Information:
Journal Volume: 96; Journal Issue: 11; Journal ID: ISSN 2469-9950
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS

Citation Formats

Qi, Zhenyi, Wu, X., Ward, D. R., Prance, J. R., Kim, Dohun, Gamble, John King, Mohr, R. T., Shi, Zhan, Savage, D. E., Lagally, M. G., Eriksson, M. A., Friesen, Mark, Coppersmith, S. N., and Vavilov, M. G. Effects of charge noise on a pulse-gated singlet-triplet S - T_ qubit. United States: N. p., 2017. Web. doi:10.1103/PhysRevB.96.115305.
Qi, Zhenyi, Wu, X., Ward, D. R., Prance, J. R., Kim, Dohun, Gamble, John King, Mohr, R. T., Shi, Zhan, Savage, D. E., Lagally, M. G., Eriksson, M. A., Friesen, Mark, Coppersmith, S. N., & Vavilov, M. G. Effects of charge noise on a pulse-gated singlet-triplet S - T_ qubit. United States. doi:10.1103/PhysRevB.96.115305.
Qi, Zhenyi, Wu, X., Ward, D. R., Prance, J. R., Kim, Dohun, Gamble, John King, Mohr, R. T., Shi, Zhan, Savage, D. E., Lagally, M. G., Eriksson, M. A., Friesen, Mark, Coppersmith, S. N., and Vavilov, M. G. Mon . "Effects of charge noise on a pulse-gated singlet-triplet S - T_ qubit". United States. doi:10.1103/PhysRevB.96.115305. https://www.osti.gov/servlets/purl/1378096.
@article{osti_1378096,
title = {Effects of charge noise on a pulse-gated singlet-triplet S - T_ qubit},
author = {Qi, Zhenyi and Wu, X. and Ward, D. R. and Prance, J. R. and Kim, Dohun and Gamble, John King and Mohr, R. T. and Shi, Zhan and Savage, D. E. and Lagally, M. G. and Eriksson, M. A. and Friesen, Mark and Coppersmith, S. N. and Vavilov, M. G.},
abstractNote = {Here, we study the dynamics of a pulse-gated semiconductor double-quantum-dot qubit. In our experiments, the qubit coherence times are relatively long, but the visibility of the quantum oscillations is low. We also show that these observations are consistent with a theory that incorporates decoherence arising from charge noise that gives rise to detuning fluctuations of the double dot. Because effects from charge noise are largest near the singlet-triplet avoided level crossing, the visibility of the oscillations is low when the singlet-triplet avoided level crossing occurs in the vicinity of the charge degeneracy point crossed during the manipulation, but there is only modest dephasing at the large detuning value at which the quantum phase accumulates. This theory also agrees with experimental data and predicts that the visibility can be increased greatly by appropriate tuning of the interdot tunneling rate.},
doi = {10.1103/PhysRevB.96.115305},
journal = {Physical Review B},
number = 11,
volume = 96,
place = {United States},
year = {2017},
month = {9}
}

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Works referenced in this record:

Storing quantum information for 30 seconds in a nanoelectronic device
journal, October 2014

  • Muhonen, Juha T.; Dehollain, Juan P.; Laucht, Arne
  • Nature Nanotechnology, Vol. 9, Issue 12
  • DOI: 10.1038/nnano.2014.211

High-fidelity singlet-triplet S T qubits in inhomogeneous magnetic fields
journal, July 2015


Interplay of charge and spin coherence in Landau-Zener-Stückelberg-Majorana interferometry
journal, June 2013


An addressable quantum dot qubit with fault-tolerant control-fidelity
journal, October 2014

  • Veldhorst, M.; Hwang, J. C. C.; Yang, C. H.
  • Nature Nanotechnology, Vol. 9, Issue 12
  • DOI: 10.1038/nnano.2014.216

Nuclear spin effects in semiconductor quantum dots
journal, May 2013

  • Chekhovich, E. A.; Makhonin, M. N.; Tartakovskii, A. I.
  • Nature Materials, Vol. 12, Issue 6
  • DOI: 10.1038/nmat3652

Landau-Zener-Stückelberg interferometry of a single electron charge qubit
journal, September 2012


Coherent Adiabatic Spin Control in the Presence of Charge Noise Using Tailored Pulses
journal, February 2013


Single-Shot Correlations and Two-Qubit Gate of Solid-State Spins
journal, August 2011


Charge Noise Spectroscopy Using Coherent Exchange Oscillations in a Singlet-Triplet Qubit
journal, April 2013


Dephasing time of GaAs electron-spin qubits coupled to a nuclear bath exceeding 200 μs
journal, December 2010

  • Bluhm, Hendrik; Foletti, Sandra; Neder, Izhar
  • Nature Physics, Vol. 7, Issue 2
  • DOI: 10.1038/nphys1856

Coherent control of three-spin states in a triple quantum dot
journal, November 2011

  • Gaudreau, L.; Granger, G.; Kam, A.
  • Nature Physics, Vol. 8, Issue 1
  • DOI: 10.1038/nphys2149

A fault-tolerant addressable spin qubit in a natural silicon quantum dot
journal, August 2016


Electrically driven single-electron spin resonance in a slanting Zeeman field
journal, August 2008

  • Pioro-Ladrière, M.; Obata, T.; Tokura, Y.
  • Nature Physics, Vol. 4, Issue 10
  • DOI: 10.1038/nphys1053

Overhauser-shift measurements on Si:P near the metal-insulator transition
journal, August 1992


Relaxation, dephasing, and quantum control of electron spins in double quantum dots
journal, July 2007


Nonadiabatic dynamics of a slowly driven dissipative two-level system
journal, May 2014


Electron spin coherence exceeding seconds in high-purity silicon
journal, December 2011

  • Tyryshkin, Alexei M.; Tojo, Shinichi; Morton, John J. L.
  • Nature Materials, Vol. 11, Issue 2
  • DOI: 10.1038/nmat3182

Dissipative effects in Josephson qubits
journal, January 2004


Suppressing Spin Qubit Dephasing by Nuclear State Preparation
journal, August 2008


Interlaced Dynamical Decoupling and Coherent Operation of a Singlet-Triplet Qubit
journal, December 2010


Coherent singlet-triplet oscillations in a silicon-based double quantum dot
journal, January 2012

  • Maune, B. M.; Borselli, M. G.; Huang, B.
  • Nature, Vol. 481, Issue 7381
  • DOI: 10.1038/nature10707

Coherent Manipulation of Coupled Electron Spins in Semiconductor Quantum Dots
journal, September 2005


Quantum Noise in the Josephson Charge Qubit
journal, December 2004


Triplet–singlet spin relaxation via nuclei in a double quantum dot
journal, June 2005

  • Johnson, A. C.; Petta, J. R.; Taylor, J. M.
  • Nature, Vol. 435, Issue 7044
  • DOI: 10.1038/nature03815

Charge Relaxation in a Single-Electron Si / SiGe Double Quantum Dot
journal, July 2013


Quantum Spintronics: Engineering and Manipulating Atom-Like Spins in Semiconductors
journal, March 2013


On the Theory of Relaxation Processes
journal, January 1957

  • Redfield, A. G.
  • IBM Journal of Research and Development, Vol. 1, Issue 1
  • DOI: 10.1147/rd.11.0019

Harnessing the GaAs quantum dot nuclear spin bath for quantum control
journal, September 2010


Ultrafast universal quantum control of a quantum-dot charge qubit using Landau–Zener–Stückelberg interference
journal, January 2013

  • Cao, Gang; Li, Hai-Ou; Tu, Tao
  • Nature Communications, Vol. 4, Issue 1
  • DOI: 10.1038/ncomms2412

Generalized Theory of Relaxation
journal, February 1957


Universal Quantum Computation with Spin- 1 / 2 Pairs and Heisenberg Exchange
journal, September 2002


Electrical control of a long-lived spin qubit in a Si/SiGe quantum dot
journal, August 2014


Landau–Zener–Stückelberg interferometry
journal, July 2010


Second-Harmonic Coherent Driving of a Spin Qubit in a Si/SiGe Quantum Dot
journal, September 2015


High-fidelity entangling gate for double-quantum-dot spin qubits
journal, January 2017

  • Nichol, John M.; Orona, Lucas A.; Harvey, Shannon P.
  • npj Quantum Information, Vol. 3, Issue 1
  • DOI: 10.1038/s41534-016-0003-1

Control and Detection of Singlet-Triplet Mixing in a Random Nuclear Field
journal, August 2005


Open quantum system description of singlet-triplet qubits in quantum dots
journal, December 2016


Coupled quantum dots as quantum gates
journal, January 1999


Micromagnets for coherent control of spin-charge qubit in lateral quantum dots
journal, January 2007

  • Pioro-Ladrière, M.; Tokura, Y.; Obata, T.
  • Applied Physics Letters, Vol. 90, Issue 2
  • DOI: 10.1063/1.2430906

A Coherent Beam Splitter for Electronic Spin States
journal, February 2010


Gate fidelity and coherence of an electron spin in an Si/SiGe quantum dot with micromagnet
journal, October 2016

  • Kawakami, Erika; Jullien, Thibaut; Scarlino, Pasquale
  • Proceedings of the National Academy of Sciences, Vol. 113, Issue 42
  • DOI: 10.1073/pnas.1603251113

Quantum computation with quantum dots
journal, January 1998


Electron-spin-resonance transistors for quantum computing in silicon-germanium heterostructures
journal, June 2000


Quenching of dynamic nuclear polarization by spin–orbit coupling in GaAs quantum dots
journal, July 2015

  • Nichol, John M.; Harvey, Shannon P.; Shulman, Michael D.
  • Nature Communications, Vol. 6, Issue 1
  • DOI: 10.1038/ncomms8682

Demonstration of Entanglement of Electrostatically Coupled Singlet-Triplet Qubits
journal, April 2012

  • Shulman, M. D.; Dial, O. E.; Harvey, S. P.
  • Science, Vol. 336, Issue 6078, p. 202-205
  • DOI: 10.1126/science.1217692

Universal quantum control of two-electron spin quantum bits using dynamic nuclear polarization
journal, October 2009

  • Foletti, Sandra; Bluhm, Hendrik; Mahalu, Diana
  • Nature Physics, Vol. 5, Issue 12
  • DOI: 10.1038/nphys1424

Isotopically enhanced triple-quantum-dot qubit
journal, May 2015


Hyperfine interactions in silicon quantum dots
journal, April 2011


Two-axis control of a singlet-triplet qubit with an integrated micromagnet
journal, August 2014

  • Wu, X.; Ward, D. R.; Prance, J. R.
  • Proceedings of the National Academy of Sciences, Vol. 111, Issue 33
  • DOI: 10.1073/pnas.1412230111

Coherent manipulation of individual electron spin in a double quantum dot integrated with a micromagnet
journal, February 2010


Spin Manipulation of Free Two-Dimensional Electrons in Si / SiGe Quantum Wells
journal, April 2005


Rapid Single-Shot Measurement of a Singlet-Triplet Qubit
journal, October 2009


Suppressing qubit dephasing using real-time Hamiltonian estimation
journal, October 2014

  • Shulman, M. D.; Harvey, S. P.; Nichol, J. M.
  • Nature Communications, Vol. 5, Issue 1
  • DOI: 10.1038/ncomms6156

Driven coherent oscillations of a single electron spin in a quantum dot
journal, August 2006

  • Koppens, F. H. L.; Buizert, C.; Tielrooij, K. J.
  • Nature, Vol. 442, Issue 7104
  • DOI: 10.1038/nature05065