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| VOLUME 82 | ISSUE 8 |
PAGE 539
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| Quantum limits of feedback cooling in optical lattices |
T. Yu. Ivanova, D. A. Ivanov
Laser Research Institute, St.Petersburg State University, 198504 St.Petersburg, Russia
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PACS: 32.80.Pj, 42.50.Lc
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Abstract
A quantum mechanical analysis of feedback cooling [see Phys. Rev.
Lett. 94, 153002 (2005)] of atoms trapped in a far-off-resonant
optical lattice is presented. The model considered is valid for ultralow
energies of atoms allowing thus for the study of an ultimate cooling limit.
The influence of the measurement-induced noise and feedback-induced
atom-atom correlations on the cooling efficiency is discussed. It is shown
that there are regimes where the quantum noise can be effectively
compensated for.
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