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Sharp crossover from composite fermionization to phase separation in microscopic mixtures of ultracold bosons

Author
Garcia, M.; Julia, B.; Astrakharchik, G.; Busch, T.; Boronat, J.; Rios, A.
Type of activity
Journal article
Journal
Physical review A
Date of publication
2013-12-03
Volume
88
Number
6
First page
063604-1
Last page
063604-5
DOI
https://doi.org/10.1103/PhysRevA.88.063604 Open in new window
Project funding
Fluidos y sólidos cuánticos fuertamente correlacionados (FIS2011-25275)
Repository
http://hdl.handle.net/2117/27031 Open in new window
Abstract
We show that a two-component mixture of a few repulsively interacting ultracold atoms in a one-dimensional trap possesses very diverse quantum regimes and that the crossover between them can be induced by tuning the interactions in one of the species. Starting from the composite fermionization regime, in which the interactions between both components are large and neither gas is phase coherent, our results show that a phase-separated state can be reached by increasing the interaction in one of t...
Citation
Garcia, M. [et al.]. Sharp crossover from composite fermionization to phase separation in microscopic mixtures of ultracold bosons. "Physical review A", 03 Desembre 2013, vol. 88, núm. 6, p. 063604-1-063604-5.
Keywords
Interacting species, Large population, Natural orbitals, Phase coherent, Quantum regimes, Two-component mixtures, Ultracold atoms, Ultracold bosons
Group of research
SIMCON - First-principles approaches to condensed matter physics: quantum effects and complexity

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