Relaxation Dynamics of a Fermi Gas in an Optical Superlattice
Daniel Pertot, Ameneh Sheikhan, Eugenio Cocchi +5 more
This Letter comprises an experimental and theoretical investigation of the time evolution of a Fermi gas following fast and slow quenches of a one-dimensional optical double-well superlattice potential. We investigate both the local tunneling in the connected double wells and the global dynamics towards a steady state, i.e., a time-independent state. The local observables in the steady state resemble those of a thermal equilibrium state, whereas the global properties indicate a strong nonequilibrium situation.
arXiv:1407.6037•Physical Review Letters•Oct 23, 2014•36 citations