Nonequilibrium action principles for quasi-field
Quasiparticle descriptions of nonequilibrium physics hold the promise of tracking the relevant degrees of freedom in calculations of statistical systems, as well as providing an important formal perspective on quantum field theories away from equilibrium. A formulation of nonequilibrium, quasiparti...
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| Date: | 2000 |
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| Main Author: | |
| Format: | Article |
| Language: | English |
| Published: |
Інститут фізики конденсованих систем НАН України
2000
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| Series: | Condensed Matter Physics |
| Online Access: | http://dspace.nbuv.gov.ua/handle/123456789/121040 |
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| Journal Title: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Cite this: | Nonequilibrium action principles for quasi-field / M. Burgess // Condensed Matter Physics. — 2000. — Т. 3, № 1(21). — С. 35-50. — Бібліогр.: 23 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| Summary: | Quasiparticle descriptions of nonequilibrium physics hold the promise of
tracking the relevant degrees of freedom in calculations of statistical systems, as well as providing an important formal perspective on quantum
field theories away from equilibrium. A formulation of nonequilibrium, quasiparticle field theory is presented here. The Schwinger closed time path
generating functional and generalized sources are used to develop schematic field theories which can be adapted to real problems. The importance
of the source method for effective nonequilibrium theories is argued and the
physical interpretation of the formalism is discussed, including its possible
applicability to biological dynamics. |
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