Heterotic string conformal field theory and A-D-E singularities | Zendy

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Heterotic string conformal field theory and A-D-E singularities

Author(s) -

Edward Witten

Publication year - 2000

Publication title -

journal of high energy physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.998

H-Index - 261

eISSN - 1126-6708

pISSN - 1029-8479

DOI - 10.1088/1126-6708/2000/02/025

Subject(s) - worldsheet , heterotic string theory , physics , instanton , gravitational singularity , conformal field theory , singularity , string (physics) , conformal map , mathematical physics , field theory (psychology) , field (mathematics) , theoretical physics , quantum electrodynamics , string field theory , geometry , quantum mechanics , mathematics , pure mathematics

We analyze the behavior of the heterotic string near an A-D-E singularitywithout small instantons. This problem is governed by a strongly coupledworldsheet conformal field theory, which, by a combination of O(alpha')corrections and worldsheet instantons, smooths out the singularities present inthe classical geometry.Comment: 23 pp, additional references and citation of previous work and a nontrivial correction concerning (0,4) linear sigma model

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