Jahn-Teller-induced Berry phase in spin-orbit-coupled Bose-Einstein condensates

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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