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Published August 2, 2010 | Version Published
Journal Article Open

Proposal for high-speed and high-fidelity electron-spin initialization in a negatively charged quantum dot coupled to a microcavity in a weak external magnetic field

Creators

  • 1. ROR icon Stanford University

Abstract

We describe a proposal for fast electron-spin initialization in a negatively charged quantum dot coupled to a microcavity without the need for a strong magnetic field. We employ two-photon excitation to access trion states that are spin forbidden by one-photon excitation. Our simulation shows a maximum initialization speed of 1.3 GHz and maximum fidelity of 99.7% with realistic system parameters.

Additional Information

© 2010 The American Physical Society. Received 20 July 2009; published 2 August 2010. The authors gratefully acknowledge financial support provided by the Army Research Office, National Science Foundation, and Office of Naval Research. A.M. was supported by Texas Instruments. Z. L. was supported by the National Science Foundation.

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Published - PhysRevA.82.022301.pdf

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PhysRevA.82.022301.pdf

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Additional details

Identifiers

Eprint ID
34133
Resolver ID
CaltechAUTHORS:20120917-102034528

Funding

Army Research Office (ARO)
NSF
Office of Naval Research (ONR)
Texas Instruments

Dates

Created
2012-09-17
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Updated
2021-11-09
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