Energy spectrum of bound-spinons in the quantum Ising spin-chain ferromagnet
| dc.creator | Rutkevich, S. B. | |
| dc.date | 2007-12-19 | |
| dc.date.accessioned | 2026-07-07T09:36:34Z | |
| dc.date.available | 2026-07-07T09:36:34Z | |
| dc.description | We study the excitation energy spectrum in the S=1/2 ferromagnetic Ising spin chain with the easy axis z in a magnetic field h={h_x,0,h_z}. According to Wu and McCoy's scenario of weak confinement, the fermionic spinon excitations (kinks), being free at h_z = 0 in the ordered phase, are coupled into bosonic bound states at arbitrary small h_z. We calculate the energy spectrum of such excitations in the leading order in small h_z, using different perturbative methods developed for the similar problem in the Ising field theory. | |
| dc.description | 33 pages, 8 figures | |
| dc.identifier | https://arxiv.org/abs/0712.3189 | |
| dc.identifier | http://arxiv.org/abs/0712.3189 | |
| dc.identifier | J. Stat. Phys., Vol. 131, N5, 917-939 (2008) | |
| dc.identifier | doi:10.1007/s10955-008-9495-1 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/160166 | |
| dc.subject | Statistical Mechanics | |
| dc.title | Energy spectrum of bound-spinons in the quantum Ising spin-chain ferromagnet | |
| dc.type | text |