Jahn-Teller-induced Berry phase in spin-orbit-coupled Bose-Einstein condensates. Larson, J. & Sjoqvist, E. Physical Review A, 79(4):043627, April, 2009.
Paper doi abstract bibtex We demonstrate that Berry phases may greatly affect the dynamics of spin-orbit-coupled Bose-Einstein condensates. The effective model Hamiltonian under consideration is shown to be equivalent to the E×ε Jahn-Teller model first introduced in molecular physics. The corresponding conical intersection is identified and the Berry phase acquired for a wave packet encircling the intersection is studied. It is found that this phase manifests itself in the density profile of the condensate, making it a directly measurable quantity via time-of-flight detection. Moreover, the non-Abelian gauge structure of the system is addressed and we verify how it affects the dynamics.
@article{larson_jahn-teller-induced_2009,
title = {Jahn-{Teller}-induced {Berry} phase in spin-orbit-coupled {Bose}-{Einstein} condensates},
volume = {79},
url = {http://link.aps.org/doi/10.1103/PhysRevA.79.043627},
doi = {10.1103/PhysRevA.79.043627},
abstract = {We demonstrate that Berry phases may greatly affect the dynamics of spin-orbit-coupled Bose-Einstein condensates. The effective model Hamiltonian under consideration is shown to be equivalent to the E×ε Jahn-Teller model first introduced in molecular physics. The corresponding conical intersection is identified and the Berry phase acquired for a wave packet encircling the intersection is studied. It is found that this phase manifests itself in the density profile of the condensate, making it a directly measurable quantity via time-of-flight detection. Moreover, the non-Abelian gauge structure of the system is addressed and we verify how it affects the dynamics.},
number = {4},
urldate = {2010-05-14TZ},
journal = {Physical Review A},
author = {Larson, Jonas and Sjoqvist, Erik},
month = apr,
year = {2009},
pages = {043627}
}
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