Séminaire « Fluides Quantiques » : Natalia Matveeva

Ultracold atoms with dipolar interaction: a quantum Monte Carlo perspective

Natalia Matveeva (BEC Center, University of Trento, Italie)

Ultracold gases with dipolar interactions became a hot topic in the field of ultracold atoms due to the recent experimental progress towards the creation of polar molecules in the quantum degenerate regime.

In the strongly interacting regime the beyond mean-field effects can play an important role, therefore the use of numerical techniques, such as quantum Monte Carlo methods, becomes preferable. In my talk I present the results of the Fixed-Node Diffusion Monte Carlo study of dipolar fermions in two dimensions at zero temperature [1,2]. I discuss the liquid-crystal phase transition, the impurity problem and BCS-BEC crossover phenomenon.

[1] N. Matveeva and S. Giorgini, Phys. Rev. Lett. 109, 200401, 2012
[2] N. Matveeva and S. Giorgini, Phys. Rev. Lett. 111, 220405, 2013

Date/Time : 10/02/2014 - 14:30 - 15:45

Location : LPTMS, salle 201, 2ème étage, Bât 100, Campus d'Orsay

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