A semiclassical trace formula for the canonical partition function of one dimensional systems
| dc.creator | Parisio, Fernando | |
| dc.creator | de Aguiar, M. A. M. | |
| dc.date | 2006-07-20 | |
| dc.date | 2006-09-05 | |
| dc.date.accessioned | 2026-07-07T08:01:06Z | |
| dc.date.available | 2026-07-07T08:01:06Z | |
| dc.description | We present a semiclassical trace formula for the canonical partition function of arbitrary one-dimensional systems. The approximation is obtained via the stationary exponent method applied to the phase-space integration of the density operator in the coherent state representation. The formalism is valid in the low temperature limit, presenting accurate results in this regime. As illustrations we consider a quartic Hamiltonian that cannot be split into kinetic and potential parts, and a system with two local minima. Applications to spin systems are also presented. | |
| dc.description | 22 pages, 4 figures new section with applications to spin systems | |
| dc.identifier | https://arxiv.org/abs/quant-ph/0607140 | |
| dc.identifier | http://arxiv.org/abs/quant-ph/0607140 | |
| dc.identifier | Physica A 380 (2007) 211 | |
| dc.identifier | doi:10.1016/j.physa.2007.02.113 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/128844 | |
| dc.subject | Quantum Physics | |
| dc.title | A semiclassical trace formula for the canonical partition function of one dimensional systems | |
| dc.type | text |