Critical Boundary Sine-Gordon Revisited
| dc.creator | Hasselfield, M. | |
| dc.creator | Lee, Taejin | |
| dc.creator | Semenoff, G. W. | |
| dc.creator | Stamp, P. C. E. | |
| dc.date | 2005-12-18 | |
| dc.date | 2006-01-15 | |
| dc.date.accessioned | 2026-07-07T10:45:31Z | |
| dc.date.available | 2026-07-07T10:45:31Z | |
| dc.description | We revisit the exact solution of the two space-time dimensional quantum field theory of a free massless boson with a periodic boundary interaction and self-dual period. We analyze the model by using a mapping to free fermions with a boundary mass term originally suggested in ref.[22]. We find that the entire SL(2,C) family of boundary states of a single boson are boundary sine-Gordon states and we derive a simple explicit expression for the boundary state in fermion variables and as a function of sine-Gordon coupling constants. We use this expression to compute the partition function. We observe that the solution of the model has a strong-weak coupling generalization of T-duality. We then examine a class of recently discovered conformal boundary states for compact bosons with radii which are rational numbers times the self-dual radius. These have simple expression in fermion variables. We postulate sine-Gordon-like field theories with discrete gauge symmmetries for which they are the appropriate boundary states. | |
| dc.description | 33 pages, 1 figure, references added, typos corrected | |
| dc.identifier | https://arxiv.org/abs/hep-th/0512219 | |
| dc.identifier | http://arxiv.org/abs/hep-th/0512219 | |
| dc.identifier | AnnalsPhys.321:2849-2875,2006 | |
| dc.identifier | doi:10.1016/j.aop.2006.02.006 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/182938 | |
| dc.subject | High Energy Physics - Theory | |
| dc.subject | Strongly Correlated Electrons | |
| dc.title | Critical Boundary Sine-Gordon Revisited | |
| dc.type | text |