Details
| Originalsprache | Englisch |
|---|---|
| Aufsatznummer | 033017 |
| Fachzeitschrift | Physical Review Research |
| Jahrgang | 4 |
| Ausgabenummer | 3 |
| Publikationsstatus | Veröffentlicht - 11 Juli 2022 |
Abstract
ASJC Scopus Sachgebiete
- Physik und Astronomie (insg.)
- Allgemeine Physik und Astronomie
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in: Physical Review Research, Jahrgang 4, Nr. 3, 033017, 11.07.2022.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung
}
TY - JOUR
T1 - Anomalous buoyancy of quantum bubbles in immiscible Bose mixtures
AU - Edler, Daniel
AU - Ardila, L. A. Peña
AU - Cabrera, Cesar R.
AU - Santos, Luis
N1 - We acknowledge support of the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany’s Excellence Strategy EXC-2123 Quantum Frontiers No. 390837967 and No. FOR 2247. C.R.C. has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie SkłodowskaCurie Grant Agreement No. 897142.
PY - 2022/7/11
Y1 - 2022/7/11
N2 - 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, around which it spreads either totally or partially. We discuss how quantum fluctuations may significantly change the volume and position of immiscible bubbles. We consider the particular case of two miscible components, forming a pseudo-scalar bubble condensate with enhanced quantum fluctuations (quantum bubble), immersed in a bath provided by a third component, with which they are immiscible. We show that in such a peculiar effective binary mixture, quantum fluctuations change the equilibrium of pressures that define the bubble volume and modify as well the criterion for buoyancy. Once buoyancy sets in, in contrast to the mean-field case, quantum fluctuations may place the bubble at an intermediate position between the center and the surface. At the surface, the quantum bubble may transition into a floating self-bound droplet.
AB - 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, around which it spreads either totally or partially. We discuss how quantum fluctuations may significantly change the volume and position of immiscible bubbles. We consider the particular case of two miscible components, forming a pseudo-scalar bubble condensate with enhanced quantum fluctuations (quantum bubble), immersed in a bath provided by a third component, with which they are immiscible. We show that in such a peculiar effective binary mixture, quantum fluctuations change the equilibrium of pressures that define the bubble volume and modify as well the criterion for buoyancy. Once buoyancy sets in, in contrast to the mean-field case, quantum fluctuations may place the bubble at an intermediate position between the center and the surface. At the surface, the quantum bubble may transition into a floating self-bound droplet.
KW - cond-mat.quant-gas
UR - http://www.scopus.com/inward/record.url?scp=85135956814&partnerID=8YFLogxK
U2 - 10.1103/PhysRevResearch.4.033017
DO - 10.1103/PhysRevResearch.4.033017
M3 - Article
VL - 4
JO - Physical Review Research
JF - Physical Review Research
SN - 2643-1564
IS - 3
M1 - 033017
ER -