Quantum discrete $ϕ^4$ model at finite temperatures: the mean-field phase diagram
| dc.creator | Savkin, V. V. | |
| dc.creator | Rubtsov, A. N. | |
| dc.date | 2001-12-23 | |
| dc.date | 2002-01-27 | |
| dc.date.accessioned | 2026-07-07T02:43:56Z | |
| dc.date.available | 2026-07-07T02:43:56Z | |
| dc.description | The quantum discrete $ϕ^4$ model at finite temperature is studied in the mean-field approximation. The phase diagrams are obtained for a wide range of the model parameters. The domains of applicability for the classical, quantum, and order-disorder limits are determined. It is shown that a remarkable part of the phase diagram is reproduced by the first quantum correction to the classical result. Parameters of Sn$_2$P$_2$S$_6$, SrTiO$_3$, and KH$_2$PO$_4$ are placed in the phase diagram of the model. | |
| dc.description | 3 figures, figures were changed | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0112429 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0112429 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/18706 | |
| dc.subject | Statistical Mechanics | |
| dc.title | Quantum discrete $ϕ^4$ model at finite temperatures: the mean-field phase diagram | |
| dc.type | text |