Title

Fault-tolerant quantum computing with coded spins using the conditional Faraday rotation in quantum dots

Authors

Authors

M. N. Leuenberger

Comments

Authors: contact us about adding a copy of your work at STARS@ucf.edu

Abbreviated Journal Title

Phys. Rev. B

Keywords

ERROR-CORRECTING CODES; COMPUTATION; COHERENCE; UNIVERSAL; DYNAMICS; GATES; Physics, Condensed Matter

Abstract

We propose a scalable fault-tolerant scheme for deterministic quantum computing with spins that is based on a three-particle entanglement produced by the conditional Faraday rotation of the polarization of single photons due to the nonresonant interaction with spins of quantum dots, embedded in microcavities inside a photonic crystal. The resulting conditional phase gate yields switching times of 50 ps. We show that it acts fault-tolerantly not only on the Calderbank-Shor-Steane quantum error correction codes, but also on Shor's code in a single shot. Single-qubit operations on Shor's logical qubits can be implemented by means of the optical Stark effect combined with the optical Ruderman-Kittel-Kasuya-Yosida interaction in a single shot.

Journal Title

Physical Review B

Volume

73

Issue/Number

7

Publication Date

1-1-2006

Document Type

Article

DOI Link

http://dx.doi.org/10.1103/PhysRevB.73.075312

Language

English

First Page

8

WOS Identifier

WOS:000235668900072

ISSN

1098-0121

Recommended Citation

"Fault-tolerant quantum computing with coded spins using the conditional Faraday rotation in quantum dots" (2006). Faculty Bibliography 2000s. 6342.
https://stars.library.ucf.edu/facultybib2000/6342