- Institut d'Estudis Espacials de CatalunyaES488 papers
- Centre National de la Recherche ScientifiqueFR368 papers
- Universitat de BarcelonaES312 papers
- Barcelona Supercomputing CenterES306 papers
- Institute of Photonic SciencesES273 papers
- Institute of Space SciencesES240 papers
- Consejo Superior de Investigaciones CientíficasES205 papers
- Institució Catalana de Recerca i Estudis AvançatsES200 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR191 papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR172 papers
- Universitat Autònoma de BarcelonaES144 papers
- University of BolognaIT141 papers
8 papers · 2 filters
Reentrant behavior of the breathing-mode-oscillation frequency in a one-dimensional Bose gas
A. Iu. Gudyma, G. E. Astrakharchik, Mikhail B. Zvonarev
We calculate the breathing mode frequency in a one-dimensional Bose gas confined to a harmonic trap of frequency . We predict Exciting temporal oscillations of the density…
Bose-Einstein condensates with localized spin-orbit coupling: soliton complexes and spinor dynamics
Yaroslav V. Kartashov, Vladimir V. Konotop, Dmitry A. Zezyulin
Spin-orbit (SO) coupling can be introduced in a Bose--Einstein condensate (BEC) as a gauge potential acting only in a localized spatial domain. Effect of such a SO "defect" can be…
Distinguishability, degeneracy and correlations in three harmonically trapped bosons in one-dimension
M. A. García-March, B. Juliá-Díaz, G. E. Astrakharchik +2
We study a system of two bosons of one species and a third boson of a second species in a one-dimensional parabolic trap at zero temperature. We assume contact repulsive inter- and…
Quantum Phase Transition with a Simple Variational Ansatz
Y. Lutsyshyn, G. E. Astrakharchik, C. Cazorla +1
We study the zero-temperature quantum phase transition between liquid and hcp solid helium-4. We use the variational method with a simple yet exchange-symmetric and fully explicit…
Luttinger liquid behavior of one-dimensional 3He
G. E. Astrakharchik, J. Boronat
The ground-state properties of one-dimensional 3He are studied using quantum Monte Carlo methods. The equation of state is calculated in a wide range of physically relevant densiti…
Phase diagram of dipolar bosons in 2D with tilted polarization
A. Macia, J. Boronat, F. Mazzanti
We analyze the ground state of a system of dipolar bosons moving in the plane and such that their dipolar moments are all aligned in a fixed direction in space. We focus on th…