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Application of functional integration to the derivation of the low-frequency asymptotic behaviour of Green's functions and kinetic equations for a nonideal Bose gas

✍ Scribed by V. N. Popov


Book ID
112466466
Publisher
SP MAIK Nauka/Interperiodica
Year
1971
Tongue
English
Weight
1001 KB
Volume
6
Category
Article
ISSN
0040-5779

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Nonequilibrium Green's function technique is applied to the many-exciton system under the action of an externally driven light field. Starting with Dyson's equation for the nonequilibrium exciton propagator the shift and damping of exciton-levels due to exciton-exciton interaction are calculated in