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AN EFFICIENT METHOD FOR DETERMINING QUANTUM DYNAMICS IN STRONG FIELDS BY INTEGRATING THROUGH AMPLITUDE AND FREQUENCY PARAMETER SPACE

DSpace at IIT Bombay

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Title AN EFFICIENT METHOD FOR DETERMINING QUANTUM DYNAMICS IN STRONG FIELDS BY INTEGRATING THROUGH AMPLITUDE AND FREQUENCY PARAMETER SPACE
 
Creator GROSS, P
GUPTA, A
BAIRAGI, DB
MISHRA, MK
 
Subject intense laser fields
grid hamiltonian method
oscillating field
floquet theory
dissociation
eigenvalues
multiphoton
ionization
excitation
systems
 
Description A new method which computes the dynamics of molecular systems under the influence of a strong field is presented. Eigenvalues and eigenfunctions of the time-dependent Schrodinger equation are obtained and integrated over a range of field amplitudes and frequencies, and the evolution of the wavefunction is determined using Floquet formalism. With this method, it is possible to predict the wavefunction dynamics for an arbitrary range of field intensities and wavelengths by solving the time-dependent Schrodinger equation only once or, in some cases, by not solving it at all, even though the field intensities are well within the nonperturbative regime. Large savings in computational time are demonstrated in application of the method to vibrational excitation of hydrogen fluoride.
 
Publisher ELSEVIER SCIENCE BV
 
Date 2011-07-24T08:55:14Z
2011-12-26T12:48:44Z
2011-12-27T05:51:31Z
2011-07-24T08:55:14Z
2011-12-26T12:48:44Z
2011-12-27T05:51:31Z
1995
 
Type Article
 
Identifier CHEMICAL PHYSICS LETTERS, 236(1-2), 8-14
0009-2614
http://dx.doi.org/10.1016/0009-2614(95)00196-B
http://dspace.library.iitb.ac.in/xmlui/handle/10054/6375
http://hdl.handle.net/10054/6375
 
Language en