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Title: Full configuration interaction simulations of exchange-coupled donors in silicon using multi-valley effective mass theory

Abstract

Abstract Donor spins in silicon have achieved record values of coherence times and single-qubit gate fidelities. The next stage of development involves demonstrating high-fidelity two-qubit logic gates, where the most natural coupling is the exchange interaction. To aid the efficient design of scalable donor-based quantum processors, we model the two-electron wave function using a full configuration interaction method within a multi-valley effective mass theory. We exploit the high computational efficiency of our code to investigate the exchange interaction, valley population, and electron densities for two phosphorus donors in a wide range of lattice positions, orientations, and as a function of applied electric fields. The outcomes are visualized with interactive images where donor positions can be swept while watching the valley and orbital components evolve accordingly. Our results provide a physically intuitive and quantitatively accurate understanding of the placement and tuning criteria necessary to achieve high-fidelity two-qubit gates with donors in silicon.

Authors:
ORCiD logo; ; ; ; ; ORCiD logo
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
1835348
Grant/Contract Number:  
NA0003525
Resource Type:
Published Article
Journal Name:
New Journal of Physics
Additional Journal Information:
Journal Name: New Journal of Physics Journal Volume: 23 Journal Issue: 7; Journal ID: ISSN 1367-2630
Publisher:
IOP Publishing
Country of Publication:
United Kingdom
Language:
English

Citation Formats

Joecker, Benjamin, Baczewski, Andrew D., Gamble, John K., Pla, Jarryd J., Saraiva, André, and Morello, Andrea. Full configuration interaction simulations of exchange-coupled donors in silicon using multi-valley effective mass theory. United Kingdom: N. p., 2021. Web. doi:10.1088/1367-2630/ac0abf.
Joecker, Benjamin, Baczewski, Andrew D., Gamble, John K., Pla, Jarryd J., Saraiva, André, & Morello, Andrea. Full configuration interaction simulations of exchange-coupled donors in silicon using multi-valley effective mass theory. United Kingdom. https://doi.org/10.1088/1367-2630/ac0abf
Joecker, Benjamin, Baczewski, Andrew D., Gamble, John K., Pla, Jarryd J., Saraiva, André, and Morello, Andrea. Tue . "Full configuration interaction simulations of exchange-coupled donors in silicon using multi-valley effective mass theory". United Kingdom. https://doi.org/10.1088/1367-2630/ac0abf.
@article{osti_1835348,
title = {Full configuration interaction simulations of exchange-coupled donors in silicon using multi-valley effective mass theory},
author = {Joecker, Benjamin and Baczewski, Andrew D. and Gamble, John K. and Pla, Jarryd J. and Saraiva, André and Morello, Andrea},
abstractNote = {Abstract Donor spins in silicon have achieved record values of coherence times and single-qubit gate fidelities. The next stage of development involves demonstrating high-fidelity two-qubit logic gates, where the most natural coupling is the exchange interaction. To aid the efficient design of scalable donor-based quantum processors, we model the two-electron wave function using a full configuration interaction method within a multi-valley effective mass theory. We exploit the high computational efficiency of our code to investigate the exchange interaction, valley population, and electron densities for two phosphorus donors in a wide range of lattice positions, orientations, and as a function of applied electric fields. The outcomes are visualized with interactive images where donor positions can be swept while watching the valley and orbital components evolve accordingly. Our results provide a physically intuitive and quantitatively accurate understanding of the placement and tuning criteria necessary to achieve high-fidelity two-qubit gates with donors in silicon.},
doi = {10.1088/1367-2630/ac0abf},
journal = {New Journal of Physics},
number = 7,
volume = 23,
place = {United Kingdom},
year = {Tue Jul 13 00:00:00 EDT 2021},
month = {Tue Jul 13 00:00:00 EDT 2021}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1088/1367-2630/ac0abf

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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

A silicon-based nuclear spin quantum computer
journal, May 1998


An improved effective-mass-theory equation for phosphorus doped in silicon
journal, January 2013


Electronic states and wavefunctions of diatomic donor molecular ions in silicon: multi-valley envelope function theory
journal, January 2014


A single-atom electron spin qubit in silicon
journal, September 2012

  • Pla, Jarryd J.; Tan, Kuan Y.; Dehollain, Juan P.
  • Nature, Vol. 489, Issue 7417
  • DOI: 10.1038/nature11449

A two-qubit gate between phosphorus donor electrons in silicon
journal, July 2019


Conditional quantum operation of two exchange-coupled single-donor spin qubits in a MOS-compatible silicon device
journal, January 2021


Valley interference and spin exchange at the atomic scale in silicon
journal, November 2020


Impact of the valley degree of freedom on the control of donor electrons near a Si/SiO 2 interface
journal, July 2012


Coherent coupling between a quantum dot and a donor in silicon
journal, October 2017

  • Harvey-Collard, Patrick; Jacobson, N. Tobias; Rudolph, Martin
  • Nature Communications, Vol. 8, Issue 1
  • DOI: 10.1038/s41467-017-01113-2

Multivalley Effective-Mass Approximation for Donor States in Silicon. I. Shallow-Level Group-V Impurities
journal, November 1971


Quantum control and manipulation of donor electrons in Si-based quantum computing
journal, June 2009

  • Calderón, M. J.; Saraiva, A.; Koiller, Belita
  • Journal of Applied Physics, Vol. 105, Issue 12
  • DOI: 10.1063/1.3124084

Theory of localized states in semiconductors. I. New results using an old method
journal, July 1974


Single-shot readout of an electron spin in silicon
journal, September 2010

  • Morello, Andrea; Pla, Jarryd J.; Zwanenburg, Floris A.
  • Nature, Vol. 467, Issue 7316
  • DOI: 10.1038/nature09392

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


A single-atom transistor
journal, February 2012

  • Fuechsle, Martin; Miwa, Jill A.; Mahapatra, Suddhasatta
  • Nature Nanotechnology, Vol. 7, Issue 4
  • DOI: 10.1038/nnano.2012.21

Optimization of a solid-state electron spin qubit using gate set tomography
journal, October 2016


Theory of one and two donors in silicon
journal, March 2015


Quantifying the quantum gate fidelity of single-atom spin qubits in silicon by randomized benchmarking
journal, March 2015


Determination of the Donor Pair Exchange Energy in Phosphorus-Doped Silicon
journal, January 1970


Molecular orbital calculations of two-electron states for P-donor solid-state spin qubits
journal, March 2006


An Exchange-Coupled Donor Molecule in Silicon
journal, September 2014

  • Gonzalez-Zalba, M. F.; Saraiva, André; Calderón, María J.
  • Nano Letters, Vol. 14, Issue 10
  • DOI: 10.1021/nl5023942

Computation of the Stark effect in P impurity states in silicon
journal, July 2006


Extending the coherence of a quantum dot hybrid qubit
journal, August 2017


Electronic states and valley-orbit coupling in linear and planar molecules formed by coupled P donors in silicon
journal, May 2017


Valley splitting of single-electron Si MOS quantum dots
journal, December 2016

  • Gamble, John King; Harvey-Collard, Patrick; Jacobson, N. Tobias
  • Applied Physics Letters, Vol. 109, Issue 25
  • DOI: 10.1063/1.4972514

Comparison of low frequency charge noise in identically patterned Si/SiO 2 and Si/SiGe quantum dots
journal, June 2016

  • Freeman, Blake M.; Schoenfield, Joshua S.; Jiang, HongWen
  • Applied Physics Letters, Vol. 108, Issue 25
  • DOI: 10.1063/1.4954700

Multivalley spin splitting of 1 s states for sulfur, selenium, and tellurium donors in silicon
journal, February 1982


Uniaxial Stress and Magnetic Field Effects on Far-Infrared Photoconductivity of D - Centers in P, As and Li Doped Si Crystals
journal, July 1982

  • Narita, Shin-ichiro; Shinbashi, Takahisa; Kobayashi, Michihiro
  • Journal of the Physical Society of Japan, Vol. 51, Issue 7
  • DOI: 10.1143/jpsj.51.2186