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Control of mixed-state quantum systems by a train of short pulses | | D. Sugny
; A. Keller
; O. Atabek
; D. Daems
; C. M. Dion
; S. Guérin
; H. R. Jauslin
; | | Date: |
14 Oct 2005 | | Journal: | Phys. Rev. A 72, 032704 (2005) DOI: 10.1103/PhysRevA.72.032704 | | Abstract: | A density matrix approach is developped for the control of a mixed-state quantum system using a time-dependent external field such as a train of pulses. This leads to the definition of a target density matrix constructed in a reduced Hilbert space as a specific combination of the eigenvectors of a given observable through weighting factors related with the initial statistics of the system. A train of pulses is considered as a possible strategy to reach this target. An illustration is given by considering the laser control of molecular alignment / orientation in thermal equilibrium. | | Source: | arXiv, quant-ph/0510114 | | Services: | Forum | Review | PDF | Favorites | |
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