1. Doppler cooling of gallium atoms: 2. Simulation in complex multilevel systems
- Author
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J. F. McCann, L Rutherford, Ian C. Lane, Department of Applied Mathematics and Theoretical Physics, Queen's University [Kingston, Canada], and School of Chemistry and Chemical Engineering
- Subjects
Physics ,Atomic Physics (physics.atom-ph) ,Numerical analysis ,chemistry.chemical_element ,FOS: Physical sciences ,Condensed Matter Physics ,01 natural sciences ,7. Clean energy ,Atomic and Molecular Physics, and Optics ,Physics - Atomic Physics ,Computational physics ,010309 optics ,Radiation pressure ,chemistry ,Laser cooling ,0103 physical sciences ,Master equation ,Physical Sciences ,Dissipative system ,Transient (oscillation) ,Gallium ,Atomic physics ,010306 general physics ,Doppler cooling - Abstract
This paper derives a general procedure for the numerical solution of the Lindblad equations that govern the coherences arising from multicoloured light interacting with a multilevel system. A systematic approach to finding the conservative and dissipative terms is derived and applied to the laser cooling of gallium. An improved numerical method is developed to solve the time-dependent master equation and results are presented for transient cooling processes. The method is significantly more robust, efficient and accurate than the standard method and can be applied to a broad range of atomic and molecular systems. Radiation pressure forces and the formation of dynamic dark-states are studied in the gallium isotope 66Ga., Comment: 15 pages, 8 figures
- Published
- 2010
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