Program

O.4 -- Oral, NCTP-41

Date: Monday, 1 August 2016

Time: 11h30 - 11h50

Two-component fermions in optical lattice with spatially alternating interactions

Hoang Anh Tuan (1), Nguyen Thi Hai Yen (1), Tran Thi Thu Trang (2) and Le Duc Anh (3)

(1) Institute of Physics, VAST; (2) Ha Long University, Uong Bi, Quang Ninh; (3) Hanoi National University of Education

We investigate two-component mass-imbalanced fermions in optical lattice with spatially modulated interactions by using the two-site dynamical mean field theory. At half-filling and zero temperature, the phase diagram of the system is analytically obtained, where a metallic region is reduced with increasing the mass imbalance. Ground state properties of the fermionic system are discussed from behaviors of both the quasi-particle weight at the Fermi level for each component and the double occupancy for each sublattice as functions of the local interaction strengths for various values of the mass imbalance.

Presenter: Nguyen Thi Hai Yen