title: Manipulation of cold atomic collisions by cavity QED effects.
abstract: We show how the dynamics of collisions between cold atoms can be manipulated by a modification of spontaneous emission times. This is achieved by placing the atomic sample in a resonant optical cavity. Spontaneous emission is enhanced by a combination of multiparticle entanglement together with a higher density of modes of the modified vacuum field, in a situation akin to superradiance. A specific situation is considered and we show that this effect can be experimentally observed as a large suppression in trap-loss rates.
authors: Instituto de Física, Universidade de São Paulo, Caixa Postal 66318, CEP 05315-970, São Paulo, SP, Brazil.
authors: J I
authors: JI
authors: Kim
authors: R B
authors: RB
authors: Santos
authors: P
authors: P
authors: Nussenzveig