(3+1) massive Dirac fermions with ultracold atoms in optical lattice

Seminar date and time: 
Thursday, 5 May, 2011 - 12:30
Affiliation: 
GIQ
Author: 
Luca Lepori
Location: 
IFAE Seminar room

I discuss a cold-atoms set-up able to simulate (3+1) Dirac fermions and some applications, relevant both in elementary particle and in condensed matter physics. I show in particular the possibility to add a tunable mass by using Bragg pulses, an effective external electromagnetic coupling and an internal interaction, also covariant. Finally I consider the 2D limit, describing the emergence of (2+1) Dirac fermions in presence of a strongly anisotropic lattice.

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