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Bosonic Ghosts at c = 2 as a Logarithmic CFT

Ridout, David and Wood, Simon 2015. Bosonic Ghosts at c = 2 as a Logarithmic CFT. Letters in Mathematical Physics 105 (2) , pp. 279-307. 10.1007/s11005-014-0740-z

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Abstract

Motivated by Wakimoto free field realisations, the bosonic ghost system of central charge c = 2 is studied using a recently proposed formalism for logarithmic conformal field theories. This formalism addresses the modular properties of the theory with the aim being to determine the (Grothendieck) fusion coefficients from a variant of the Verlinde formula. The key insight, in the case of bosonic ghosts, is to introduce a family of parabolic Verma modules which dominate the spectrum of the theory. The results include S-transformation formulae for characters, non-negative integer Verlinde coefficients, and a family of modular invariant partition functions. The logarithmic nature of the corresponding ghost theories is explicitly verified using the Nahm–Gaberdiel–Kausch fusion algorithm.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Mathematics
Publisher: Springer
ISSN: 0377-9017
Date of First Compliant Deposit: 6 December 2016
Date of Acceptance: 22 November 2014
Last Modified: 04 Jun 2017 09:33
URI: http://orca.cf.ac.uk/id/eprint/96667

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