| Institute of Physics, VAST | Center for Theoretical Physics | Center for Computational Physics |
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2nd International Workshop on Theoretical
and Computational Physics (IWTCP-2):
Modern methods and latest results in
particle physics, nuclear physics and astrophysics
Buon Ma Thuot, 28-31 July 2014
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ProgrammeConference PresentationO.3 -- Oral, NCTP-39 Date: Monday, 28-07-2014 Time: 14h00 - 14h20 Coherent Potential Approximation Study of the Mott Transition in Optical Lattice System with Site-dependent InteractionsLe Duc Anh (1), Tran Thi Thu Trang (1,2), Hoang Anh Tuan (3) (1) Hanoi National Universiy of Education (2) Quang Ninh Teacher Training College (3) Institute of Physics, VAST We study the Mott transition in the half-filled Hubbard model with spatially alternating interactions by means of the coherent potential approximation. The phase boundary between metallic and insulating phases at zero temperature is derived and the nature of the Mott states is also considered. Our results are in good agreement with the ones recently obtained by the two-site dynamical mean-field theory. Presenter: Hoang Anh - Tuan |
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Institute of Physics, VAST
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Center for Theoretical Physics |
Center for Computational Physics
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