The massive soliton theories describe integrable perturbations of WZW cosets as generalized multi-component sine-Gordon models. We study their coupling to 2-dim gravity in the conformal gauge and show that the resulting models can be interpreted as conformai non-Abelian Toda theories when a certain algebraic condition is satisfied. These models, however, do not provide quantum mechanically consistent string backgrounds in the case the underlying WZW constraints are first solved classically.
|Number of pages||8|
|Journal||Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics|
|Publication status||Published - 1996 Oct 31|
Bibliographical noteFunding Information:
We thank H.J. Shin and M.V. Saveliev for useful discussions. Q.P. is supportedi n part by the program of Basic Science Research,K orean Ministry of Education BSRI-96-2442, and by the Korean Science and Engineering Foundation through CTP/SNU. He also wishes to thank the hospitality of CTP at MIT during the final stageso f this work.
ASJC Scopus subject areas
- Nuclear and High Energy Physics