167 citations · 793 across the 28 of their papers we have counts for
28 papers
Shortcut to adiabaticity in spinor condensates
Arnau Sala, David López Núñez, Joan Martorell +5
We devise a method to shortcut the adiabatic evolution of a spin-1 Bose gas with an external magnetic field as the control parameter. An initial many-body state with almost all bos…
Robustness of discrete semifluxons in closed Bose-Hubbard chains
A. Gallemí, M. Guilleumas, J. Martorell +3
We present the properties of the ground state and low-energy excitations of Bose-Hubbard chains with a geometry that varies from open to closed and with a tunable twisted link. In…
Hybrid synchronization in coupled ultracold atomic gases
Haibo Qiu, Roberta Zambrini, Artur Polls +2
We study the time evolution of two coupled many-body quantum systems one of which is assumed to be Bose condensed. Specifically, we consider two ultracold atomic clouds populating…
Fragmented condensation in Bose-Hubbard trimers with tunable tunnelling
A. Gallemí, M. Guilleumas, J. Martorell +3
We consider a Bose-Hubbard trimer, i.e. an ultracold Bose gas populating three quantum states. The latter can be either different sites of a triple-well potential or three internal…
Shortcut to adiabaticity in internal bosonic Josephson junctions
A. Yuste, B. Juliá-Díaz, E. Torrontegui +3
We extend a recent method to shortcut the adiabatic following to internal bosonic Josephson junctions in which the control parameter is the linear coupling between the modes. The a…
Quantum and thermal fluctuations in bosonic Josephson junctions
Bruno Julia-Diaz, Alex D. Gottlieb, Joan Martorell +1
We use the Bose-Hubbard Hamiltonian to study quantum fluctuations in canonical equilibrium ensembles of bosonic Josephson junctions at relatively high temperatures, comparing the r…