[EN] We study entanglement and squeezing of two uncoupled impurities immersed in a Bose-Einstein condensate. We treat them as two quantum Brownian particles interacting with a bath composed of the Bogoliubov modes of the ...
Mehboudi, Mohammad; Lampo, Aniello; Charalambous, Christos; Correa, Luis A.; Garcia March, Miguel Angel; Lewenstein, Maciej(American Physical Society, 2019-01-24)
[EN] We introduce a novel minimally disturbing method for sub-nK thermometry in a Bose-Einstein condensate (BEC). Our technique is based on the Bose polaron model; namely, an impurity embedded in the BEC acts as the ...