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Phys. Rev. A 75, 032311 (2007) [10 pages]

Sequential generation of matrix-product states in cavity QED

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C. Schön1, K. Hammerer2, M. M. Wolf3, J. I. Cirac3, and E. Solano4,5
1Blackett Laboratory, Imperial College London, Prince Consort Road, London SW7 2BZ, United Kingdom
2Institute for Theoretical Physics, University of Innsbruck, 6020 Innsbruck, Austria
3Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Strasse 1, 85748 Garching, Germany
4Physics Department, ASC, and CeNS, Ludwig-Maximilians-Universität, Theresienstrasse 37, 80333 Munich, Germany
5Sección Física, Departamento de Ciencias, Pontificia Universidad Católica del Perú, Apartado Postal 1761, Lima, Peru

Received 13 December 2006; published 8 March 2007

We study the sequential generation of entangled photonic and atomic multiqubit states in the realm of cavity QED. We extend the work of C. Schön et al. Phys. Rev. Lett. 95 110503 (2005), where it was shown that all states generated in a sequential manner can be classified efficiently in terms of matrix-product states. In particular, we consider two scenarios: photonic multiqubit states sequentially generated at the cavity output of a single-photon source and atomic multiqubit states generated by their sequential interaction with the same cavity mode.

© 2007 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevA.75.032311
DOI:
10.1103/PhysRevA.75.032311
PACS:
03.67.Mn, 42.50.Dv, 42.50.Pq