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Q: Fachverband Quantenoptik und Photonik

Q 32: Poster: Quantum gases, ultracold atoms and molecules

Q 32.58: Poster

Mittwoch, 19. März 2014, 16:30–18:30, Spree-Palais

Cavity cooling of an atomic array in the presence of the spontaneous emission — •Oxana Mishina and Giovanna Morigi — Saarland University, Saarbruecken 66123, Germany

We present the theoretical investigations of the cavity cooling scheme in application to an atomic array. Following the experimental demonstration of a collective cooling of the array [1] we propose the scheme to cool not only one collective mode of atomic motion but all the atoms to the ground stated of the individual traps. Taking in to account the limitations due to the scattering in to the outer cavity modes we find the conditions when the cooling of tens of atoms is experimentally feasible within a 10 ms time. Additionally we show that the collective effects slow down the cooling in comparison with the single atom cooling case and they also cause a stronger requirement for overcoming the limitations imposed by the spontaneous emission. [1] Optomechanical Cavity Cooling of an Atomic Ensemble M.H., Schleier-Smith, I.D. Leroux, H. Zhang, M.A. Van Camp, and V. Vuletić, Phys. Rev. Lett. 107, 143005 (2011)