Rice University

Events at Rice

Seminar

Physics & Astronomy

Speaker: Carlos Bolech
University of Cincinnati

AMO - WHAT COULD MATRIX-PRODUCT STATES HAVE TO OFFER TO COLD ATOMIC GASES?

Thursday, February 9, 2017
4:00 PM  to 5:00 PM

300  Brockman Hall for Physics
Rice University
6100 Main St
Houston, Texas, USA

Interacting imbalanced fermionic atomic gases constitute a nice playground for theories and experiments alike. Their physics is particularly rich in one dimension, where in the attractive case they can display algebraic superfluid order with an unusual pair-density wave character that is not found in higher dimensions. This is the one-dimensional analog of the elusive Fulde-Ferrell Larkin-Ovchinnikov pairing mechanism. Computational approaches are extremely valuable to study these systems beyond what rigorous analytic approaches can offer and thus make better contact with the experimental scenarios. It is desirable to study the systems directly in the continuum so as to avoid artifacts coming from lattice discretization, which affect the results of otherwise reliable methods like the density-matrix renormalization group (DMRG). In the last few years, work to reformulate MPS/DMRG directly for field theories using a continuum version of the quantum-information concept of matrix-product states (MPS) has been producing very encouraging results. I will provide a progress report of these efforts as seen from the fermionic front line, as well as related numerical results that constitute the next targets for further developments. ?

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