Time: Feb. 14, 4:00 pm. Place: Physics building Rm 620 TITLE: Superfluidity: A Journey into the Lowest Dimensions SPEAKER: Miguel A. Cazalilla (Spanish National Research Council, CSIC) (faculty applicant) ABSTRACT: In this talk, I will discuss how the concept of superfluidity must be modified to　account for superfluid phenomena in systems of lower and lower dimensionality.　Finally coming to one dimensional (1D) systems, I will discuss superfluid phenomena　in relation to other peculiarities of 1D systems, such like the absence of thermalization　due to presence of non- trivial conservation laws. Time permitting, I will also discuss how　 superfluidity or the related phenomenon of Bose-Einstein condensation are affected by the coupling of one dimensional systems to various kinds of environments. RELEVANT REFERENCES: T Eggel, MA Cazalilla, and M Oshikawa Phys. Rev. Lett. 107, 275302 (2011). MA Cazalilla, R Citro, T Giamarchi, E Orignac, and M. Rigol, Rev. Mod. Phys. 83, 1405 (2011)