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Synchronization of Hamiltonian motion and dissipative effects in optical lattices: Evidence for a stochastic resonance
Laurent Sanchez-Palencia, Gilbert Grynberg
We theoretically study the influence of the noise strength on the excitation of the Brillouin propagation modes in a dissipative optical lattice. We show that the excitation has a…
Damping rates of the atomic velocity in Sisyphus cooling
Laurent Sanchez-Palencia, Michele Schiavoni, Francois-Regis Carminati +2
We present a theoretical and experimental study of the damping process of the atomic velocity in Sisyphus cooling. The relaxation rates of the atomic kinetic temperature are determ…
Phase-control of directed diffusion in a symmetric optical lattice
Michele Schiavoni, Laurent Sanchez-Palencia, Ferruccio Renzoni +1
We demonstrate the phenomenon of directed diffusion in a symmetric periodic potential. This has been realized with cold atoms in a one-dimensional dissipative optical lattice. The…
Rayleigh Scattering and Atomic Dynamics in Dissipative Optical Lattices
Francois-Regis Carminati, Laurent Sanchez-Palencia, Michele Schiavoni +2
We investigate Rayleigh scattering in dissipative optical lattices. In particular, following recent proposals (S. Guibal {\it et al}, Phys. Rev. Lett. {\bf 78}, 4709 (1997); C. Jur…
Anisotropic velocity distributions in 3D dissipative optical lattices
Johan Jersblad, Harald Ellmann, Laurent Sanchez-Palencia +1
We present a direct measurement of velocity distributions in two dimensions by using an absorption imaging technique in a 3D near resonant optical lattice. The results show a clear…