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Entanglement generation between distant atoms by Lyapunov control

Source: Phys. Rev. A 80, 042305 (2009); doi:10.1103/PhysRevA.80.042305

Published 6 October 2009

KEYWORDS and PACS
Keywords
PACS
  • 03.67.Bg
    Entanglement production and manipulation (quantum information)
  • 42.50.Dv
    Quantum state engineering and measurements (quantum optics)
  • YEAR: 2009
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PUBLICATION DATA
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Xiaoting Wang and S. G. Schirmer
Department of Applied Maths and Theoretical Physics, University of Cambridge, Wilberforce Road, Cambridge CB3 0WA, United Kingdom
We show how to apply Lyapunov control design to the problem of entanglement creation between two atoms in distant cavities connected by optical fibers. The Lyapunov control design is optimal in the sense that the distance from the target state decreases monotonically and exponentially, and the concurrence increases accordingly. This method is far more robust than simple geometric schemes. ©2009 The American Physical Society
History: Received 15 June 2009; published 6 October 2009
Permalink: http://link.aps.org/abstract/PRA/v80/e042305

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