Journal
EPL
Volume 101, Issue 6, Pages -Publisher
EPL ASSOCIATION, EUROPEAN PHYSICAL SOCIETY
DOI: 10.1209/0295-5075/101/60005
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Funding
- EPSRC [EP/J016349/1]
- Emil Aaltonen foundation
- Finnish Cultural foundation
- MIUR
- Engineering and Physical Sciences Research Council [EP/J016349/1] Funding Source: researchfish
- EPSRC [EP/J016349/1] Funding Source: UKRI
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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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