Ring solids and supersolids in spherical shell-shaped dipolar Bose-Einstein condensates

Autor: J. Sánchez-Baena, R. Bombín, J. Boronat

Publikováno v: Physical Review Research, Vol 6, Iss 3, p 033116 (2024)

We study the interplay between the anisotropy of the dipole-dipole interaction and confinement in a curved geometry by means of the extended Gross-Pitaevskii equation, which allows us to characterize the ground state of a dipolar Bose gas under the c

Externí odkaz: https://doaj.org/article/8b52a17a114a44b4bc7ca78a6546c1a2

Universal Properties of Anisotropic Dipolar Bosons in Two Dimensions

Autor: J. Sánchez-Baena, L. A. Peña Ardila, G. Astrakharchik, F. Mazzanti

Publikováno v: SciPost Physics, Vol 13, Iss 2, p 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 u

Externí odkaz: https://doaj.org/article/efcef7913a0d417bae84590f3397b46a

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Supersolid stripes enhanced by correlations in a Raman spin-orbit-coupled system

Autor: Jordi Boronat, J. Sánchez-Baena, Ferran Mazzanti

Publikováno v: UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)

A Bose gas under the effect of Raman Spin-Orbit Coupling (SOC) is analyzed using the Discrete Spin T-moves Diffusion Monte Carlo method. By computing the energy as well as the static structure factor and the superfluid fraction of the system, the eme

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::96862b06826f4c734dc241415d357e1a
http://hdl.handle.net/2117/191090

Dilute dipolar quantum droplets beyond the extended Gross-Pitaevskii equation

Autor: Raúl Bombín, Fabian Böttcher, Mingyang Guo, Igor Ferrier-Barbut, Jordi Boronat, Jan-Niklas Schmidt, Ferran Mazzanti, J. Sánchez-Baena, Tim Langen, Tilman Pfau, Matthias Wenzel

Publikováno v: Physical Review Research
Physical Review Research, American Physical Society, 2019, 1 (3), pp.033088. ⟨10.1103/PhysRevResearch.1.033088⟩
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)

Dipolar quantum droplets are exotic quantum objects that are self-bound due to the subtle balance of attraction, repulsion, and quantum correlations. Here we present a systematic study of the critical atom number of these self-bound droplets, compari

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6f17ef86846ccc89264bb4826214dc78
https://hal.archives-ouvertes.fr/hal-03013587