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We study minimizers of a Gross--Pitaevskii energy describing a two-component Bose-Einstein condensate confined in a radially symmetric harmonic trap and set into rotation. We consider the case of coexistence of the components in the…

Analysis of PDEs · Mathematics 2015-06-19 Amandine Aftalion , Benedetta Noris , Christos Sourdis

We study minimizers of a Gross-Pitaevskii energy describing a two-component Bose-Einstein condensate set into rotation. We consider the case of segregation of the components in the Thomas-Fermi regime, where a small parameter $\epsilon$…

Analysis of PDEs · Mathematics 2019-01-28 Amandine Aftalion , Etienne Sandier

We study a double Cahn-Hilliard type functional related to the Gross-Pitaevskii energy of two-components Bose-Einstein condensates. In the case of large but same order intercomponent and intracomponent coupling strengths, we prove…

Analysis of PDEs · Mathematics 2014-09-03 Michael Goldman , Jimena Royo-Letelier

We study the existence and variational characterization of steady states in a coupled system of Gross--Pitaevskii equations modeling two-component Bose-Einstein condensates with the magnetic field trapping. The limit with no trapping has…

Analysis of PDEs · Mathematics 2021-10-04 Andres Contreras , Dmitry E. Pelinovsky , Valeriy Slastikov

We perform a mean-field study of the binary Bose-Einstein condensate mixtures as a function of the mutual repulsive interaction strength. In the phase segregated regime, we find that there are two distinct phases: the weakly segregated…

Condensed Matter · Physics 2009-10-31 P. Ao , S. T. Chui

In this work, we consider a Bose-Einstein condensate in the self-focusing regime, confined transversely by a funnel-like potential and axially by a double-well potential formed by the combination of two inverted P\"oschl-Teller potentials.…

Quantum Gases · Physics 2022-10-19 Bruno M. Miranda , Mateus C. P. dos Santos , Wesley B. Cardoso

We study harmonically trapped two-species Bose-Einstein condensates within the Gross-Pitaevskii formalism. By invoking the Thomas-Fermi approximation, we derive an analytical solution for the miscible ground state in a particular region of…

Quantum Gases · Physics 2018-05-01 P. Kuopanportti , Y. M. Liu , Y. Z. He , C. G. Bao

We study the minimizers of a magnetic 2D non-linear Schr\"odinger energy functional in a quadratic trapping potential, describing a rotating Bose-Einstein condensate. We derive an effective Thomas-Fermi-like model in the rapidly rotating…

Mathematical Physics · Physics 2024-09-18 Dinh-Thi Nguyen , Nicolas Rougerie

We investigate a harmonically trapped two-component Bose--Einstein condensate within the miscible regime, close to its boundaries, for different ratios of effective intra- and inter-species interactions. We derive analytically a universal…

Quantum Gases · Physics 2015-05-28 J. Polo , P. Mason , S. Sridhar , T. P. Billam , V. Ahufinger , S. A. Gardiner

We investigate analytically the thermodynamical stability of vortices in the ground state of rotating 2-dimensional Bose-Einstein condensates confined in asymptotically homogeneous trapping potentials in the Thomas-Fermi regime. Our…

Mathematical Physics · Physics 2014-04-18 Tanja Rindler-Daller

We identify all possible classes of solutions for two-component Bose-Einstein condensates (BECs) within the Thomas-Fermi (TF) approximation, and check these results against numerical simulations of the coupled Gross-Pitaevskii equations…

Condensed Matter · Physics 2007-05-23 M. Trippenbach , K. Goral , K. Rzazewski , B. A. Malomed , Y. B. Band

We study the phase separation configurations and their rotational properties for a mixture of two interacting charged Bose-Einstein condensates subject to a magnetic field trapped in disc and Corbino geometries. We calculate the ground…

Quantum Gases · Physics 2021-03-11 S. Seyyare Aksu , A. Levent Subaşı , Nader Ghazanfari

The boundary of two mixed Bose-Einstein condensates interacting repulsively was considered in the case of spatial separation at zero temperature. Analytical expressions for density distribution of condensates were obtained by solving two…

Soft Condensed Matter · Physics 2012-05-28 R. A. Barankov

We study a binary mixture of Bose-Einstein condensates, confined in a generic potential, in the Thomas-Fermi approximation. We search for the zero-temperature ground state of the system, both in the case of fixed numbers of particles and…

Mathematical Physics · Physics 2011-12-08 P. Facchi , G. Florio , S. Pascazio , F. V. Pepe

We consider the ground state of a harmonically trapped Bose-Einstein condensate within the Gross-Pitaevskii theory including the effective-range corrections for a two-body zero-range potential. The resulting non-linear Schr\"odinger…

Quantum Gases · Physics 2009-10-28 M. Thøgersen , N. T. Zinner , A. S. Jensen

We consider the energy modeling a two component Bose-Einstein condensate in the limit of strong coupling and strong segregation. We prove the $\Gamma$-convergence to a perimeter minimization problem, with a weight given by the density of…

Analysis of PDEs · Mathematics 2013-04-25 Amandine Aftalion , Jimena Royo-Letelier

We study a rapidly rotating Bose-Einstein condensate confined to a finite trap in the framework of two-dimensional Gross-Pitaevskii theory in the strong coupling (Thomas-Fermi) limit. Denoting the coupling parameter by $1/\eps^2$ and the…

Mathematical Physics · Physics 2008-12-17 M. Correggi , J. Yngvason

We study the problem of dimension reduction for the three dimensional Gross-Pitaevskii equation (GPE) describing a Bose-Einstein condensate confined in a strongly anisotropic harmonic trap. Since the gas is assumed to be in a strong…

Mathematical Physics · Physics 2015-06-19 Weizhu Bao , Loic Le Treust , Florian Mehats

The state of a rotating Bose-Einstein condensate in a harmonic trap is modeled by a wave function that minimizes the Gross-Pitaevskii functional. The resulting minimization problem has two new features compared to other similar functionals…

Analysis of PDEs · Mathematics 2014-08-29 Ayman Kachmar

This paper is concerned with the properties of $L^2$-normalized minimizers of the Gross-Pitaevskii (GP) functional for a two-dimensional Bose-Einstein condensate with attractive interaction and ring-shaped potential. By establishing some…

Functional Analysis · Mathematics 2020-02-27 Yujin Guo , Xiaoyu Zeng , Huan-Song Zhou
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