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Charged quasiparticles dressed by the low excitations of an electron gas, constitute one of the fundamental pillars for understanding quantum many-body effects in some materials. Quantum simulation of quasiparticles arising from atom-ion hybrid syste
Externí odkaz:
http://arxiv.org/abs/2401.05324
Publikováno v:
Nature communications 14, 1647 (2023)
Induced interactions and bound states of charge carriers immersed in a quantum medium are crucial for the investigation of quantum transport. Ultracold atom-ion systems can provide a convenient platform for studying this problem. Here, we investigate
Externí odkaz:
http://arxiv.org/abs/2206.03476
Publikováno v:
Physical Review Research 4,033017(2022)
Buoyancy is a well-known effect in immiscible binary Bose-Einstein condensates. Depending on the differential confinement experienced by the two components, a bubble of one component sitting at the center of the other eventually floats to the surface
Externí odkaz:
http://arxiv.org/abs/2204.00606
Publikováno v:
Phys. Rev. A 107, L021302 (2023)
Breakthrough experiments have newly explored the fascinating physics of dipolar quantum droplets and supersolids. The recent realization of dipolar mixtures opens further intriguing possibilities. We show that under rather general conditions, the pre
Externí odkaz:
http://arxiv.org/abs/2202.08259
Publikováno v:
SciPost Phys. 13, 031 (2022)
The energy of ultra-dilute quantum many-body systems is known to exhibit a universal dependence on the gas parameter $x=n a_0^d$, with $n$ the density, $d$ the dimensionality of the space ($d=1,2,3$) and $a_0$ the $s$-wave scattering length. The univ
Externí odkaz:
http://arxiv.org/abs/2112.11094
Publikováno v:
Phys. Rev. A 104, 043313 (2021)
Quantum Monte Carlo techniques are employed to study the properties of polarons in an ultracold Fermi gas, at $T= 0,$ and in the unitary regime using both a zero-range model and a square-well potential. For a fixed density, the potential range is var
Externí odkaz:
http://arxiv.org/abs/2110.13099
Autor:
Ardila, L. A. Peña
Publikováno v:
Phys. Rev. A 103, 033323 (2021)
We investigate the non-equilibrium dynamics of an impurity coupled to a Bose-Einstein condensate, systematically compared with recent experimental results [M. G. Skou et al., Nat. Phys. (2021)]. The dynamics of the impurity is tracked down by using a
Externí odkaz:
http://arxiv.org/abs/2012.11591
Publikováno v:
Phys. Rev. Lett. 126, 025301 (2021)
Recently achieved two-component dipolar Bose-Einstein condensates open exciting possibilities for the study of mixtures of ultra-dilute quantum liquids. While non-dipolar self-bound mixtures are necessarily miscible with an approximately fixed ratio
Externí odkaz:
http://arxiv.org/abs/2007.00404
Publikováno v:
Commun. Phys. 4, 94 (2021)
The presence of strong interactions in a many-body quantum system can lead to a variety of exotic effects. Here we show that even in a comparatively simple setup consisting of a charged impurity in a weakly interacting bosonic medium the competition
Externí odkaz:
http://arxiv.org/abs/2005.12033
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