Bipolarons in a Bose-Einstein Condensate

Physical Review Letters
A Camacho-GuardianGeorg M Bruun

Abstract

Mobile impurities in a Bose-Einstein condensate form quasiparticles called polarons. Here, we show that two such polarons can bind to form a bound bipolaron state. Its emergence is caused by an induced nonlocal interaction mediated by density oscillations in the condensate, and we derive using field theory an effective Schrödinger equation describing this for an arbitrarily strong impurity-boson interaction. We furthermore compare with quantum Monte Carlo simulations finding remarkable agreement, which underlines the predictive power of the developed theory. It is found that bipolaron formation typically requires strong impurity interactions beyond the validity of more commonly used weak-coupling approaches that lead to local Yukawa-type interactions. We predict that the bipolarons are observable in present experiments, and we describe a procedure to probe their properties.

References

Apr 1, 1996·Physical Review C: Nuclear Physics·R MachleidtY Song
Sep 8, 2000·Physical Review Letters·H HeiselbergL Viverit
May 23, 2006·Physical Review Letters·Daw-Wei Wang
Jun 29, 2006·Physical Review Letters·F M Cucchietti, E Timmermans
Feb 1, 2008·Physical Review Letters·P A BobbertM Wohlgenannt
Aug 8, 2009·Physical Review Letters·André SchirotzekMartin W Zwierlein
Sep 28, 2010·Physical Review Letters·Christophe Mora, Frédéric Chevy
Jun 5, 2012·Nature·Marco KoschorreckMichael Köhl
Oct 3, 2015·Physical Review Letters·Jesper LevinsenGeorg M Bruun
Nov 10, 2015·Physical Review Letters·Rasmus Søgaard ChristensenGeorg M Bruun
Aug 16, 2016·Physical Review Letters·Ming-Guang HuDeborah S Jin
Aug 16, 2016·Physical Review Letters·Nils B JørgensenJan J Arlt
Sep 24, 2016·Physical Review Letters·Yulia E ShchadilovaEugene Demler
Nov 16, 2016·Science·Marko CetinaEugene Demler
Mar 11, 2017·Physical Review Letters·F ScazzaG Roati
Feb 27, 2018·Physical Review Letters·Nils-Eric GuentherGeorg M Bruun

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Citations

Apr 11, 2020·Science·Zoe Z YanMartin W Zwierlein
Jan 5, 2019·Physical Review Letters·Jami J KinnunenGeorg M Bruun
Aug 4, 2020·Physical Review Letters·K Knakkergaard NielsenT Pohl
May 3, 2020·The Journal of Chemical Physics·Xiang LiAndreas Deuchert
Jun 23, 2020·Physical Review Letters·David DzsotjanMichael Fleischhauer
Sep 1, 2018·Physical Review Letters·Yong-Chang ZhangThomas Pohl
Jan 23, 2021·Physical Review Letters·A Camacho-GuardianG M Bruun

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