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Title: Scalable quantum computer architecture with coupled donor-quantum dot qubits

Abstract

A quantum bit computing architecture includes a plurality of single spin memory donor atoms embedded in a semiconductor layer, a plurality of quantum dots arranged with the semiconductor layer and aligned with the donor atoms, wherein a first voltage applied across at least one pair of the aligned quantum dot and donor atom controls a donor-quantum dot coupling. A method of performing quantum computing in a scalable architecture quantum computing apparatus includes arranging a pattern of single spin memory donor atoms in a semiconductor layer, forming a plurality of quantum dots arranged with the semiconductor layer and aligned with the donor atoms, applying a first voltage across at least one aligned pair of a quantum dot and donor atom to control a donor-quantum dot coupling, and applying a second voltage between one or more quantum dots to control a Heisenberg exchange J coupling between quantum dots and to cause transport of a single spin polarized electron between quantum dots.

Inventors:
; ; ; ; ;
Publication Date:
Research Org.:
LBNL (Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States))
Sponsoring Org.:
USDOE
OSTI Identifier:
1150828
Patent Number(s):
8,816,325
Application Number:
13/645,291
Assignee:
The Regents of the University of California (Oakland, CA) LBNL
DOE Contract Number:  
AC02-05CH11231
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
97 MATHEMATICS AND COMPUTING

Citation Formats

Schenkel, Thomas, Lo, Cheuk Chi, Weis, Christoph, Lyon, Stephen, Tyryshkin, Alexei, and Bokor, Jeffrey. Scalable quantum computer architecture with coupled donor-quantum dot qubits. United States: N. p., 2014. Web.
Schenkel, Thomas, Lo, Cheuk Chi, Weis, Christoph, Lyon, Stephen, Tyryshkin, Alexei, & Bokor, Jeffrey. Scalable quantum computer architecture with coupled donor-quantum dot qubits. United States.
Schenkel, Thomas, Lo, Cheuk Chi, Weis, Christoph, Lyon, Stephen, Tyryshkin, Alexei, and Bokor, Jeffrey. Tue . "Scalable quantum computer architecture with coupled donor-quantum dot qubits". United States. doi:. https://www.osti.gov/servlets/purl/1150828.
@article{osti_1150828,
title = {Scalable quantum computer architecture with coupled donor-quantum dot qubits},
author = {Schenkel, Thomas and Lo, Cheuk Chi and Weis, Christoph and Lyon, Stephen and Tyryshkin, Alexei and Bokor, Jeffrey},
abstractNote = {A quantum bit computing architecture includes a plurality of single spin memory donor atoms embedded in a semiconductor layer, a plurality of quantum dots arranged with the semiconductor layer and aligned with the donor atoms, wherein a first voltage applied across at least one pair of the aligned quantum dot and donor atom controls a donor-quantum dot coupling. A method of performing quantum computing in a scalable architecture quantum computing apparatus includes arranging a pattern of single spin memory donor atoms in a semiconductor layer, forming a plurality of quantum dots arranged with the semiconductor layer and aligned with the donor atoms, applying a first voltage across at least one aligned pair of a quantum dot and donor atom to control a donor-quantum dot coupling, and applying a second voltage between one or more quantum dots to control a Heisenberg exchange J coupling between quantum dots and to cause transport of a single spin polarized electron between quantum dots.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Aug 26 00:00:00 EDT 2014},
month = {Tue Aug 26 00:00:00 EDT 2014}
}

Patent:

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Works referenced in this record:

Critical issues in the formation of quantum computer test structures by ion implantation
journal, August 2009

  • Schenkel, T.; Lo, C. C.; Weis, C. D.
  • Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol. 267, Issue 16, p. 2563-2566
  • DOI: 10.1016/j.nimb.2009.05.061

Mapping of ion beam induced current changes in FinFETs
journal, May 2009

  • Weis, C. D.; Schuh, A.; Batra, A.
  • Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol. 267, Issue 8-9, p. 1222-1225
  • DOI: 10.1016/j.nimb.2009.01.019