Abstract
We generalize the BRS method for the (finite-dimensional) quantum gauge theory involved in the zero modes of the monodromy extended SU(2) WZNW model. The generalization consists of a nilpotent operator Q such that Qh = 0 (h = k + 2 = 2, 3, ... being the height of the current algebra representation) acting on an extended state space. The physical subquotient is identified with the direct sum ⊕ h-1 n=1 Ker(Qn)/Im(Qh−n).
Similar content being viewed by others
References
Alekseev, A. Yu. and Faddeev, L. D.: (T*G)t: A toy model for conformal field theory, Comm. Math. Phys. 141 (1991), 413–422.
Becchi, C., Rouet, A. and Stora, R.: Renormalization models with broken symmetries, In: G. Velo and A. S. Wightman (eds), Renormalization Theory (Erice 1975), D. Reidel, Dordrecht, 1976.
Bernard, D. and Felder, G.: Fock representations and BRST cohomology in SL.2. current algebra, Comm. Math. Phys. 127 (1990), 145–168.
Bonora, L. and Cotta-Ramusino, P.: Some remarks on BRS transformations, anomalies and the cohomology of the Lie algebra of the group of gauge transformations, Comm. Math. Phys. 87 (1983), 589–603.
Dubois-Violette, M.: Systèmes dynamiques contraints: l'approche homologique, Ann. Inst. Fourier Grenoble 37 (1987), 45–57.
Dubois-Violette, M.: Generalized differential spaces with d N = 0 and the q-differential calculus. Czech J. Phys. 46 (1997), 1227–1233.
Dubois-Violette, M.: d N = 0: Generalized homology, K-Theory 14 (1998), 371–404.
Dubois-Violette M.: Generalized homologies for d N = 0 and graded q-differential algebras, Contemp. Math. 219 (1998), 69–79.
Dubois-Violette, M. and Kerner, R.: Universal q-differential calculus and q-analog of homological algebra, Acta Math. Univ. Comenian. 65 (1996), 175–188.
Dubois-Violette, M. and Todorov, I. T.: Generalized cohomologies and the physical subspace of the SU.2. WZNW model, Lett. Math. Phys. 42 (1997), 183–192.
Faddeev, L. D.: On the exchange matrix for a WZNW model, Comm. Math. Phys. 132 (1990), 131–138.; Quantum symmetry in conformal field theory by Hamiltonian methods, In: J. Fröhlich et al. (eds), New Symmetry Principles in Quantum Field Theory, Plenum, New York, 1992, pp. 159–175.
Falceto, F. and Gawedzki, K.: Lattice Wess-Zumino-Witten model and quantum groups, J. Geom. Phys. 11 (1993), 251–279.
Furlan, P., Hadjiivanov, L. K. and Todorov, I. T.: Canonical approach to the quantum WZNW model, Trieste-Vienna preprint IC/95/74; ESI 234 (1995).
Furlan, P., Hadjiivanov, L. K. and Todorov, I. T.: Operator realization of the SU(2) WZNW model. hep-th/9602101; Nuclear Phys. B 474 (1996), 497–511.
Furlan, P., Hadjiivanov, L. K. and Todorov, I. T.: A quantum gauge group approach to the 2D SU(n) WZNW model. hep-th/9610202; Internat. J. Modern Phys. A 12 (1997), 23–32.
Gawedzki, K.: Classical origin of quantum group symmetries in Wess-Zumino-Witten conformal field theory, Comm. Math. Phys. 139 (1991), 201–213.
Greub, W. H.: Linear Algebra, Springer-Verlag, New York, 1963.
Guichardet, A.: Cohomologie des groupes topologiques et des algèbres de Lie, CEDIC/Fernand Nathan, Paris, 1980.
Hadjiivanov, L. K., Isaev, A. P., Ogievetsky, O. V., Pyatov, P. N. and Todorov, I. T.: Hecke algebraic properties of dynamical R-matrices, Applications to related quantum matrix algebras. q-alg/9712026; J. Math. Phys. 40 (1999), 427–448.
Kapranov, M. M.: On the q-analog of homological algebra, Preprint, Cornell University 1991; q-alg/9611005.
Kassel, C. and Wambst, M.: Algèbre homologique des N-complexes et homologies de Hochschild aux racines de l'unité, Publ. RIMS Kyoto Univ. 34 (1998), 91–114.
Knizhnik, V. G. and Zamolodchikov, A. B.: Current algebra and Wess-Zumino model in two dimensions, Nuclear Phys. B 247 (1984), 83–103.
Loday, J.-L.: Cyclic homology, Springer-Verlag, New York, 1992.
Sullivan, D.: Infinitesimal computations in topology. Publ. IHES 47 (1977), 269–331.
Witten, E.: Non-abelian bosonization in two dimensions, Comm.Math. Phys. 92 (1984), 455–472.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Dubois-Violette, M., Todorov, I.T. Generalized Homologies for the Zero Modes of the SU(2) WZNW Model. Letters in Mathematical Physics 48, 323–338 (1999). https://doi.org/10.1023/A:1007679216588
Issue Date:
DOI: https://doi.org/10.1023/A:1007679216588