Chapter 23. On the Possibility of Quantum Computation Based on Photon Exchange Interactions

  1. Prof. Dr. Samuel L. Braunstein4,
  2. Dr. Hoi-Kwong Lo5 and
  3. Pieter Kok Assistant Editor4
  1. T. Opatrný1,2 and
  2. G. Kurizki3

Published Online: 28 JAN 2005

DOI: 10.1002/3527603182.ch23

Scalable Quantum Computers: Paving the Way to Realization

Scalable Quantum Computers: Paving the Way to Realization

How to Cite

Opatrný, T. and Kurizki, G. (2000) On the Possibility of Quantum Computation Based on Photon Exchange Interactions, in Scalable Quantum Computers: Paving the Way to Realization (eds S. L. Braunstein, H.-K. Lo and P. Kok), Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, FRG. doi: 10.1002/3527603182.ch23

Editor Information

  1. 4

    University of Wales, Bangor, UK

  2. 5

    MagiQ Technologies, Inc., New York, USA

Author Information

  1. 1

    Theoretisch-Physikalisches Institut, Friedrich-Schiller Universität, Max-Wien-Platz 1, D-07743 Jena, Germany

  2. 2

    Department of Theoretical Physics, Palacký University, Svobody 26, CZ-77146 Olomouc, Czechia, UK

  3. 3

    Department of Chemical Physics, Weizmann Institute of Science, 761 00 Rehovot, Israel

Publication History

  1. Published Online: 28 JAN 2005
  2. Published Print: 20 DEC 2000

ISBN Information

Print ISBN: 9783527403219

Online ISBN: 9783527603183

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Keywords:

  • quantum computation;
  • quantum computing;
  • photon exchange interactions

Summary

We examine several proposed schemes by Franson et al. for quantum logic gates based on non-local exchange interactions between two photons in a medium. In these schemes the presence of a single photon in a given mode is supposed to induce a large phase shift on another photon propagating in the same medium. We conclude that the schemes proposed so far are not able to produce the required conditional phase shift, even though the proposals contain many stimulating and intriguing ideas.