Resolving and addressing atoms in individual sites of a CO2-laser optical lattice - art. no. 051801

We report on the microscopic imaging of individual sites of an optical latt ice with a period of 5.3 mum created by a retroreflected, focused CO2-laser beam. In this one-dimensional lattice, the Lamb-Dicke limit is fulfilled i n all three spatial dimensions. Single lattice sites have been individually addressed with a focused near-resonant laser beam. Because of the negligib le decoherence rate from spontaneous photon scattering such a lattice holds intriguing prospects for the realization of fault-tolerant quantum logic g ates.