The Relation Between KMS-states for Different Temperatures
| dc.creator | Jaekel, Christian | |
| dc.date | 1998-03-30 | |
| dc.date | 2004-05-05 | |
| dc.date.accessioned | 2026-07-07T04:24:25Z | |
| dc.date.available | 2026-07-07T04:24:25Z | |
| dc.description | Given a thermal field theory for some temperature $β^{-1}$, we construct the theory at an arbitrary temperature $ 1 / β'$. Our work is based on a construction invented by Buchholz and Junglas, which we adapt to thermal field theories. In a first step we construct states which closely resemble KMS states for the new temperature in a local region $Ø_\circ \subset \rr^4$, but coincide with the given KMS state in the space-like complement of a slightly larger region $\hatØ$. By a weak*-compactness argument there always exists a convergent subnet of states as the size of $ Ø_\circ$ and $ \hatØ$ tends towards $ \rr^4$. Whether or not such a limit state is a global KMS state for the new temperature, depends on the surface energy contained in the layer in between the boundaries of $ Ø_\circ$ and $ \hatØ$. We show that this surface energy can be controlled by a generalized cluster condition. | |
| dc.description | latex, 24 pages | |
| dc.identifier | https://arxiv.org/abs/hep-th/9803245 | |
| dc.identifier | http://arxiv.org/abs/hep-th/9803245 | |
| dc.identifier | Annales Henri Poincare 5 (2004) 579-606 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/55403 | |
| dc.subject | High Energy Physics - Theory | |
| dc.title | The Relation Between KMS-states for Different Temperatures | |
| dc.type | text |