Bosons and fermions hopping on an optical lattice

Prof.dr. Tilman Esslinger
Quantenelektronik, ETH Zürich

Quantum gases trapped in the periodic potential of an optical lattice have opened a new experimental window on many-particle quantum physics. The observation of the quantum phase transition from a superfluid to a Mott insulating phase in a Bose gas has offered a first glimpse into the physics which is now becoming experimentally accessible. I will discuss experiments with one-dimensional Bose gases and report on first results with a Fermi gas loaded into a three-dimensional optical lattice.