A1 Refereed original research article in a scientific journal
Entanglement control via reservoir engineering in ultracold atomic gases
Authors: S McEndoo, P Haikka, G De Chiara, G M Palma, S Maniscalco
Publisher: EPL ASSOCIATION, EUROPEAN PHYSICAL SOCIETY
Publishing place: MULHOUSE; 6 RUE DES FRERES LUMIERE, MULHOUSE, 68200, FRANCE
Publication year: 2013
Journal: EPL
Journal name in source: Epl
Journal acronym: Epl
Number in series: 6
Volume: 101
Issue: 6
First page : 60005
Last page: 60005
Number of pages: 6
ISSN: 0295-5075
DOI: https://doi.org/10.1209/0295-5075/101/60005
Abstract
We study the entanglement of two impurity qubits immersed in a Bose-Einstein condensate (BEC) reservoir. This open quantum system model allows for interpolation between a common dephasing scenario and an independent dephasing scenario by modifying the wavelength of the superlattice superposed to the BEC, and how this influences the dynamical properties of the impurities. We demonstrate the existence of rich dynamics corresponding to different values of reservoir parameters, including phenomena such as entanglement trapping, revivals of entanglement, and entanglement generation. In the spirit of reservoir engineering, we present the optimal BEC parameters for entanglement generation and trapping, showing the key role of the ultracold-gas interactions. Copyright (C) EPLA, 2013
We study the entanglement of two impurity qubits immersed in a Bose-Einstein condensate (BEC) reservoir. This open quantum system model allows for interpolation between a common dephasing scenario and an independent dephasing scenario by modifying the wavelength of the superlattice superposed to the BEC, and how this influences the dynamical properties of the impurities. We demonstrate the existence of rich dynamics corresponding to different values of reservoir parameters, including phenomena such as entanglement trapping, revivals of entanglement, and entanglement generation. In the spirit of reservoir engineering, we present the optimal BEC parameters for entanglement generation and trapping, showing the key role of the ultracold-gas interactions. Copyright (C) EPLA, 2013
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