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

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

Other works cited 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

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