Tavis-Cummings model and collective multiqubit entanglement in trapped ions

A. Retzker, E. Solano, and B. Reznik
Phys. Rev. A 75, 022312 – Published 13 February 2007

Abstract

We present a method of generating collective multiqubit entanglement via global addressing of an ion chain performing blue and red Tavis-Cummings interactions, where several qubits are coupled to a collective motional mode. We show that a wide family of Dicke states and irradiant states can be generated by single global laser pulses, unitarily or helped with suitable postselection techniques.

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  • Received 7 May 2006

DOI:https://doi.org/10.1103/PhysRevA.75.022312

©2007 American Physical Society

Authors & Affiliations

A. Retzker1,2,*, E. Solano3,4,†, and B. Reznik5

  • 1Institute for Mathematical Sciences, Imperial College London, SW7 2PE, United Kingdom
  • 2QOLS, The Blackett Laboratory, Imperial College London, Prince Consort Rd., SW7 2BW, United Kingdom
  • 3Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Strasse 1, D-85748 Garching, Germany
  • 4Sección Física, Departamento de Ciencias, Pontificia Universidad Católica del Perú, Apartado Postal 1761, Lima, Peru
  • 5Department of Physics and Astronomy, Tel-Aviv University, Tel Aviv 69978, Israel

  • *Electronic adrress: a.retzker@imperial.ac.uk
  • Present address: Physics Department, Ludwig-Maximilian University, Munich, Germany. Electronic address: enrique.solano@physik.lmu.de

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Issue

Vol. 75, Iss. 2 — February 2007

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