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  Global phase space of coherence and entanglement in a double-well Bose-Einstein condensate

Hennig, H., Witthaut, D., & Campbell, D. K. (2012). Global phase space of coherence and entanglement in a double-well Bose-Einstein condensate. Physical Review A, 86(5): 051604. doi:10.1103/PhysRevA.86.051604.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0029-1061-2 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0029-1062-F
Genre: Journal Article

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 Creators:
Hennig, Holger1, Author              
Witthaut, Dirk2, Author              
Campbell, David K., Author
Affiliations:
1Department of Nonlinear Dynamics, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society, ou_2063286              
2Max Planck Research Group Network Dynamics, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society, ou_2063295              

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 Abstract: Ultracold atoms provide an ideal system for the realization of quantum technologies but also for the study of fundamental physical questions such as the emergence of decoherence and classicality in quantum many-body systems. Here, we study the global structure of the quantum dynamics of bosonic atoms in a double-well trap based upon the Bose-Hubbard Hamiltonian and analyze the conditions for the generation of many-particle entanglement and spin squeezing which have important applications in quantum metrology. We show how the quantum dynamics is determined by the phase-space structure of the associated mean-field system and where true quantum features arise beyond this “classical” approximation.

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Language(s): eng - English
 Dates: 2012-11-12
 Publication Status: Published in print
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 Table of Contents: -
 Rev. Method: Peer
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Title: Physical Review A
  Alternative Title : Phys. Rev. A
Source Genre: Journal
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Pages: - Volume / Issue: 86 (5) Sequence Number: 051604 Start / End Page: - Identifier: -