Anomalous low-temperature specific heat of the antiferromagnetic SU(N) Heisenberg model in a field
| dc.creator | Lee, K. | |
| dc.date | 1993-12-11 | |
| dc.date.accessioned | 2026-07-07T03:07:01Z | |
| dc.date.available | 2026-07-07T03:07:01Z | |
| dc.description | We discuss the low-temperature specific heat of the integrable SU(N)- invariant Heisenberg model in one dimension with degrees of freedom in the symmetric rank-$m$ tensor representation, especially for the antiferromagnetic coupling. It is known that the linear specific heat coefficient $\gam$ is a function of a field which breaks the SU(N) invariance of the internal degrees of freedom. We calculate the $\gam$ in a zero field and in a small field. The in-field $\gam$ is less than the zero-field $\gam$ as expected since the entropy is reduced in the ordered system. The zero-field $\gam$ is the same as the one obtained by the prediction of the critical behavior of 1D quantum spin systems via conformal field theory. This extends the previous results for N=2 to an arbitrary N. | |
| dc.description | 10 Pages, Latex file, Ewha Preprint-001 | |
| dc.identifier | https://arxiv.org/abs/cond-mat/9312046 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/9312046 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/27025 | |
| dc.subject | Condensed Matter | |
| dc.title | Anomalous low-temperature specific heat of the antiferromagnetic SU(N) Heisenberg model in a field | |
| dc.type | text |