Manipulation of the spontaneous emission of atoms trapped in a harmonic trap

Jean‐François Clément, Véronique Zehnlé, Jean Claude Garreau +1 more

Michael H. Stewart, Ludwig Krinner, Arturo Pazmiño +1 more

Ludwig Krinner, Michael H. Stewart, Arturo Pazmiño +2 more

Hubert Stoop, Kazimierz Rza̧żewski

We solve a problem of spontaneous emission from an atom trapped in a harmonic binding potential for several initial states of the center of mass: the ground state, the thermal state, and the coherent state. The spectral and temporal properties of the emitted light are discussed. We stress the role of the Doppler shift.

Pooja Nadkarni Singh, Yuri V. Rostovtsev

J. I. Kim, R.B.B. Santos, P. Nussenzveig

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.