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2020-04-09

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cc-by (c) Morera, Iván et al., 2020
Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/178862

Quantum droplets of bosonic mixtures in a one-dimensional optical lattice

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https://doi.org/10.1103/PhysRevResearch.2.022008

Abstract

We demonstrate the existence of quantum droplets in two-component one-dimensional Bose-Hubbard chains. The droplets exist for any strength of repulsive intraspecies interactions provided they are balanced by comparable attractive interspecies interactions. The ground-state phase diagram is presented and the different phases are characterized by examining the density profile and off-diagonal one- and two-body correlation functions. A rich variety of phases is found, including atomic superfluid gases, atomic superfluid droplets, pair superfluid droplets, pair superfluid gases, and a Mott-insulator phase. A parameter region prone to be experimentally explored is identified, where the average population per site is lower than three atoms, thus avoiding three-body losses. Finally, the bipartite entanglement of the droplets is found to have a nontrivial dependence on the number of particles.

Subject

Física de partícules, Bosons

Subject (English)

Particle physics, Bosons

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Articles publicats en revistes (Física Quàntica i Astrofísica)

Citation

MORERA, Iván, et al. Quantum droplets of bosonic mixtures in a one-dimensional optical lattice. Physical Review Research. 2020. Vol. 2, num. 2. ISSN 2643-1564. [consulted: 11 of August of 2026]. Available at: https://hdl.handle.net/2445/178862

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