Spin-driven spatial symmetry breaking of spinor condensates in a double well

M. Melé-Messeguer, S. Paganelli, B. Juliá-Díaz, A. Sanpera, and A. Polls
Phys. Rev. A 86, 053626 – Published 26 November 2012

Abstract

The properties of an F=1 spinor Bose-Einstein condensate trapped in a double-well potential are discussed using both a mean-field two-mode approach and a two-site Bose-Hubbard Hamiltonian. We focus on the region of phase space in which spin effects lead to symmetry breaking of the system, favoring the spatial localization of the condensate in one well. To model this transition we derive, using perturbation theory, an effective Hamiltonian that describes N/2 spin singlets confined in a double-well potential.

  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Received 12 September 2012

DOI:https://doi.org/10.1103/PhysRevA.86.053626

©2012 American Physical Society

Authors & Affiliations

M. Melé-Messeguer1,*, S. Paganelli2, B. Juliá-Díaz3, A. Sanpera2,4, and A. Polls1

  • 1Departament d’Estructura i Constituents de la Matèria, Universitat de Barcelona, 08028 Barcelona, Spain
  • 2Departament de Física, Grup de Física Teòrica: Informació i Fenòmens Quàntics, Universitat Autònoma de Barcelona, 08193 Bellaterra (Barcelona), Spain
  • 3ICFO—Institut de Ciències Fotòniques, Parc Mediterrani de la Tecnologia, 08860 Barcelona, Spain
  • 4Institució Catalana de Recerca i Estudis Avançats, E-08011 Barcelona, Spain

  • *marina.mele@gmail.com

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 86, Iss. 5 — November 2012

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review A

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×