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Titolo:
QUANTUM CONTROL OF MULTIDIMENSIONAL SYSTEMS - IMPLEMENTATION WITHIN THE TIME-DEPENDENT HARTREE APPROXIMATION
Autore:
MESSINA M; WILSON KR; KRAUSE JL;
Indirizzi:
UNIV CALIF SAN DIEGO,DEPT CHEM & BIOCHEM LA JOLLA CA 92093 UNIV FLORIDA,QUANTUM THEORY PROJECT GAINESVILLE FL 32611
Titolo Testata:
The Journal of chemical physics
fascicolo: 1, volume: 104, anno: 1996,
pagine: 173 - 182
SICI:
0021-9606(1996)104:1<173:QCOMS->2.0.ZU;2-L
Fonte:
ISI
Lingua:
ENG
Soggetto:
INTRAMOLECULAR VIBRATIONAL REDISTRIBUTION; CONTROLLING MOLECULAR-MOTION; OF-FLIGHT SPECTRA; LASER-PULSES; WAVE-PACKET; MULTIPHOTON IONIZATION; FINITE TEMPERATURE; OPTICAL CONTROL; DYNAMICS; FIELD;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
75
Recensione:
Indirizzi per estratti:
Citazione:
M. Messina et al., "QUANTUM CONTROL OF MULTIDIMENSIONAL SYSTEMS - IMPLEMENTATION WITHIN THE TIME-DEPENDENT HARTREE APPROXIMATION", The Journal of chemical physics, 104(1), 1996, pp. 173-182

Abstract

The exact formulation of quantum control is now well known and sufficiently general to describe multidimensional quantum systems. The implementation of this formalism relies on the solution of the time-dependent Schrodinger equation (TDSE) of the system under study, and thus farhas been limited for computational reasons to simple quantum systems of very small dimensionality. To study quantum control in larger systems, such as polyatomic molecules and condensed phases, we explore an implementation of the control formalism in which the TDSE is solved approximately using the time-dependent Hartree (TDH) approximation. We demonstrate formally that the TDH approximation greatly simplifies the implementation of control in the weak response regime for multidimensional systems. We also present numerical examples to show that the TDH approximation for the weak response case is sufficiently accurate to predict the laser fields that best drive a quantum system to a desired goal at a desired time, in systems containing more than one degree of freedom, by considering a two-dimensional quantum system and comparing the optimal fields obtained by solving the TDSE exactly to those obtained using the TDH approximation. (C) 1996 American Institute of Physics.

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Documento generato il 07/07/20 alle ore 12:27:10