Extended current algebras and the coset construction of conformal field theories

B. Blok*, S. Yankielowicz

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

We investigate extended algebras associated with coset construction. We associate a Verlinde type algebra A with the branching functions. Each allowed choice of a subalgebra B corresponds to an extended algebra whose classes of currents are in one to one correspondence with the elements of B. The subalgebra B encodes the fusion rules of the currents. The elements of A/B are in one to one correspondence with the primary fields. Each coset element corresponds to one primary field and its descendants. The fusion rules of the operator algebra are encoded in A.

Original languageEnglish
Pages (from-to)25-42
Number of pages18
JournalNuclear Physics, Section B
Volume315
Issue number1
DOIs
StatePublished - 13 Mar 1989

Funding

FundersFunder number
United States-Israel Binational Science Foundation
Israel Academy of Sciences and Humanities

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