21 January 2013 to 15 February 2013
Nordita
Europe/Stockholm timezone

Finite temperature phase diagram of a spin-polarized Fermi gas in a dimensional crossover

22 Jan 2013, 14:00
30m
132:028 (Nordita)

132:028

Nordita

Speaker

Mr Miikka Heikkinen (Aalto University)

Description

We investigate exotic paired states of spin-polarized Fermi gases in the dimensional crossover between onedimensional and three-dimensional optical lattices. We compute the finite temperature phase diagram of the system along the dimensional crossover using real-space dynamical mean-field theory in combination with the continuous-time auxiliary field quantum Monte Carlo method. We find that the Fulde-Ferrell–Larkin-Ovchinnikov (FFLO) state can be realized for a broad range of parameters throughout the dimensional crossover. We study the melting of the FFLO state which involves the formation of a shell structure with a strong dependence on the dimensionality. Moreover, we investigate how the spectral function of the system is modified by the non-trivial spatial structure of the FFLO state.

Primary authors

Dr Dong-Hee Kim (Aalto University) Mr Miikka Heikkinen (Aalto University)

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