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Two distinguishable impurities in BEC: squeezing and entanglement of two Bose polarons

by C. Charalambous, M.A. Garcia-March, A. Lampo, M. Mehboudi , M. Lewenstein

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Submission summary

Authors (as registered SciPost users): Christos Charalambous
Submission information
Preprint Link:  (pdf)
Date accepted: 2019-01-02
Date submitted: 2018-11-05 01:00
Submitted by: Charalambous, Christos
Submitted to: SciPost Physics
Ontological classification
Academic field: Physics
  • Condensed Matter Physics - Theory
  • Quantum Physics
Approach: Theoretical


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 condensate. The Langevin-like quantum stochastic equations derived exhibit memory effects. We study two scenarios: (i) In the absence of an external potential, we observe sudden death of entanglement; (ii) In the presence of an external harmonic potential, entanglement survives even at the asymptotic time limit. Our study considers experimentally tunable parameters.

Published as SciPost Phys. 6, 010 (2019)

Reports on this Submission

Anonymous Report 2 on 2018-12-18 (Invited Report)


The authors have addressed my comments in an entirely convincing way. I recommend publication of the manuscript without further delay.

  • validity: -
  • significance: -
  • originality: -
  • clarity: -
  • formatting: -
  • grammar: -

Anonymous Report 1 on 2018-12-8 (Invited Report)


In their replies to both referee reports, the authors have addressed all criticism. They have amended their manuscript accordingly. As I mentioned in my first report, I recommend publication of this manuscript in SciPost in its present form and without any further delay. I apologize for my late response to the reviewers reply.

  • validity: high
  • significance: good
  • originality: good
  • clarity: good
  • formatting: excellent
  • grammar: excellent

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