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Entanglement control via reservoir engineering in ultracold atomic gases
Tekijät: S McEndoo, P Haikka, G De Chiara, G M Palma, S Maniscalco
Kustantaja: EPL ASSOCIATION, EUROPEAN PHYSICAL SOCIETY
Kustannuspaikka: MULHOUSE; 6 RUE DES FRERES LUMIERE, MULHOUSE, 68200, FRANCE
Julkaisuvuosi: 2013
Journal: EPL
Tietokannassa oleva lehden nimi: Epl
Lehden akronyymi: Epl
Numero sarjassa: 6
Vuosikerta: 101
Numero: 6
Aloitussivu: 60005
Lopetussivu: 60005
Sivujen määrä: 6
ISSN: 0295-5075
DOI: https://doi.org/10.1209/0295-5075/101/60005
Tiivistelmä
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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