corner
corner
APS » Journals » Phys. Rev. A » Volume 57 » Issue 1
< Previous Article | Next Article >

Phys. Rev. A 57, 120–126 (1998)

Quantum computation with quantum dots

Download: PDF (179 kB) Export: BibTeX or EndNote (RIS)

Daniel Loss1,2,* and David P. DiVincenzo1,3,†
1Institute for Theoretical Physics, University of California, Santa Barbara, Santa Barbara, California 93106-4030
2Department of Physics and Astronomy, University of Basel, Klingelbergstrasse 82, 4056 Basel, Switzerland
3IBM Research Division, T.J. Watson Research Center, P.O. Box 218, Yorktown Heights, New York 10598

Received 9 January 1997; revised 22 July 1997; published in the issue dated January 1998

We propose an implementation of a universal set of one- and two-quantum-bit gates for quantum computation using the spin states of coupled single-electron quantum dots. Desired operations are effected by the gating of the tunneling barrier between neighboring dots. Several measures of the gate quality are computed within a recently derived spin master equation incorporating decoherence caused by a prototypical magnetic environment. Dot-array experiments that would provide an initial demonstration of the desired nonequilibrium spin dynamics are proposed.

© 1998 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevA.57.120
DOI:
10.1103/PhysRevA.57.120
PACS:
03.67.Lx, 89.70.+c, 75.10.Jm, 89.80.+h

*Electronic address: loss@ubaclu.unibas.ch

†Electronic address: divince@watson.ibm.com

 
< Previous Article | Next Article >