Tuesday's seminar

[Cond.Matt. & Stat.Mech.Section]

JOINT ICTP/SISSA STATISTICAL PHYSICS SEMINAR

  

Tuesday, 15 February   -   11:30 hrs.

 

Luigi Stasi Seminar Room, ICTP Leonardo Building - 1st floor

 

Sebastiano PILATI     ( ETH Zürich )

 

"Many-body physics with ultracold gases"

Abstract

 

In experiments performed with ultracold gases one can manipulate the main parameters of the sample.  This allows to induce various intriguing quantum phenomena due to strong inter-particle correlations.  In this talk we review some recent quantum Monte Carlo studies of Fermi gases with resonant inter-particle interactions.  We discuss the properties of the superfluid phase and of the exotic normal phase which can be stabilized at zero temperature by imposing an imbalance between the spin components.  For bosonic systems in optical lattices, we investigate the superfluid to insulator transition by using a novel continuous-space quantum Monte Carlo technique.  We address the regimes of strong inter-particle interactions and weak or intermediate optical potentials, thus extending previous theoretical studies based on discrete lattice models.