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Trial functions in variational approximations to longwavelength scattering

✍ Scribed by Feinstein, M. R.; Farrell, R. A.


Book ID
115385328
Publisher
Optical Society of America
Year
1982
Weight
956 KB
Volume
72
Category
Article
ISSN
0030-3941

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Applying the time-dependent variational principle of Balian and Ve ne roni, we derive variational approximations for multi-time correlation functions in 8 4 field theory. We assume first that the initial state is given and characterized by a density operator equal to a Gaussian density matrix. Then,