On non-equilibrium states in QFT model with boundary interaction
Abstract
We prove that certain non-equilibrium expectation values in the boundary sine-Gordon model coincide with associated equilibrium-state expectation values in the systems which differ from the boundary sine-Gordon in that certain extra boundary degrees of freedom (q-oscillators) are added. Applications of this result to actual calculation of non-equilibrium characteristics of the boundary sine-Gordon model are also discussed.
- Publication:
-
Nuclear Physics B
- Pub Date:
- June 1999
- DOI:
- 10.1016/S0550-3213(99)00198-4
- arXiv:
- arXiv:hep-th/9812091
- Bibcode:
- 1999NuPhB.549..529B
- Keywords:
-
- High Energy Physics - Theory;
- Condensed Matter
- E-Print:
- 19 pages, harvmac.tex