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Seminars & Lectures

* TITLE

Novel Fulde-Ferrell-Larkin-Ovchinnikov phases in cold Fermi gases near BCS-BEC crossover

* SPEAKERS

Name	Affiliation	E-mail
Youicji Yanase	Niigata Univ.

* HOST(Applicant)

Name	Affiliation	E-mail
Tetsuya Takimoto	APCTP

* DATE / TIME

2011-08-03, 4:30pm

* ABSTRACT

I will talk about Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) superfluid phases in population imbalanced Fermi gases near the BCS-BEC crossover [1]. Combining the Bogoliubov-de Gennes equation with self-consistent T-matrix approximation beyond the local-density approximation, we show that the angular FFLO state, in which the rotation symmetry is spontaneously broken, is stabilized in the toroidal trap. We show that the angular FFLO state is stable against fluctuations near BCS-BEC crossover.

I discuss the spatial dependences of number density and local population imbalance for an experimental test. The giant responses to the rotation will be shown as a unique manifestation of the angular FFLO state [2].

[1] Y. Yanase, Phys. Rev. B 80 (2009) 220510(R) .
[2] T. Yoshida and Y. Yanase, Submitted to Phys. Rev. A..

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