Carregant...
Miniatura

Tipus de document

Article

Versió

Versió publicada

Data de publicació

Tots els drets reservats

Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/57564

Fast generation of spin-squeezed states in bosonic Josephson junctions

Títol de la revista

Director/Tutor

ISSN de la revista

Títol del volum

Resum

We describe methods for the fast production of highly coherent-spin-squeezed many-body states in bosonic Josephson junctions. We start from the known mapping of the two-site Bose-Hubbard (BH) Hamiltonian to that of a single effective particle evolving according to a Schrödinger-like equation in Fock space. Since, for repulsive interactions, the effective potential in Fock space is nearly parabolic, we extend recently derived protocols for shortcuts to adiabatic evolution in harmonic potentials to the many-body BH Hamiltonian. A comparison with current experiments shows that our methods allow for an important reduction in the preparation times of highly squeezed spin states.

Citació

Citació

JULIÁ-DÍAZ, Bruno, TORRONTEGUI, E., MARTORELL DOMENECH, Juan, MUGA, J. g., POLLS MARTÍ, Artur. Fast generation of spin-squeezed states in bosonic Josephson junctions. _Physical Review A_. 2012. Vol. 86, núm. 063623-1-062623-6. [consulta: 22 de gener de 2026]. ISSN: 1050-2947. [Disponible a: https://hdl.handle.net/2445/57564]

Exportar metadades

JSON - METS

Compartir registre