Not doomed to fail

Abstract In their recent manuscript “An uplifting discussion of T-duality ” [26], J. Harvey and G. Moore have reevaluated a mod two condition appearing in asymmetric orbifold constructions as an obstruction to the description of certain symmetries of toroidal conformal field theories by means of aut...

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Main Authors: Anne Taormina, Katrin Wendland
Format: Article
Language:English
Published: SpringerOpen 2018-09-01
Series:Journal of High Energy Physics
Subjects:
Online Access:http://link.springer.com/article/10.1007/JHEP09(2018)062
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author Anne Taormina
Katrin Wendland
author_facet Anne Taormina
Katrin Wendland
author_sort Anne Taormina
collection DOAJ
description Abstract In their recent manuscript “An uplifting discussion of T-duality ” [26], J. Harvey and G. Moore have reevaluated a mod two condition appearing in asymmetric orbifold constructions as an obstruction to the description of certain symmetries of toroidal conformal field theories by means of automorphisms of the underlying charge lattice. The relevant “doomed to fail” condition determines whether or not such a lattice automorphism g may lift to a symmetry in the corresponding toroidal conformal field theory without introducing extra phases. If doomed to fail, then in some cases, the lift of g must have double the order of g. It is an interesting question, whether or not “geometric” symmetries are affected by these findings. In the present note, we answer this question in the negative, by means of elementary linear algebra: “geometric” symmetries of toroidal conformal field theories are not doomed to fail. Consequently, and in particular, the symmetry groups involved in symmetry surfing the moduli space of K3 theories do not differ from their lifts.
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spelling doaj.art-6b3b3d93ccdd43469dc09209cb2840892022-12-22T01:14:52ZengSpringerOpenJournal of High Energy Physics1029-84792018-09-012018911110.1007/JHEP09(2018)062Not doomed to failAnne Taormina0Katrin Wendland1Centre for Particle Theory, Department of Mathematical Sciences, University of DurhamMathematics Institute, University of FreiburgAbstract In their recent manuscript “An uplifting discussion of T-duality ” [26], J. Harvey and G. Moore have reevaluated a mod two condition appearing in asymmetric orbifold constructions as an obstruction to the description of certain symmetries of toroidal conformal field theories by means of automorphisms of the underlying charge lattice. The relevant “doomed to fail” condition determines whether or not such a lattice automorphism g may lift to a symmetry in the corresponding toroidal conformal field theory without introducing extra phases. If doomed to fail, then in some cases, the lift of g must have double the order of g. It is an interesting question, whether or not “geometric” symmetries are affected by these findings. In the present note, we answer this question in the negative, by means of elementary linear algebra: “geometric” symmetries of toroidal conformal field theories are not doomed to fail. Consequently, and in particular, the symmetry groups involved in symmetry surfing the moduli space of K3 theories do not differ from their lifts.http://link.springer.com/article/10.1007/JHEP09(2018)062Conformal Field TheoryDiscrete SymmetriesSigma Models
spellingShingle Anne Taormina
Katrin Wendland
Not doomed to fail
Journal of High Energy Physics
Conformal Field Theory
Discrete Symmetries
Sigma Models
title Not doomed to fail
title_full Not doomed to fail
title_fullStr Not doomed to fail
title_full_unstemmed Not doomed to fail
title_short Not doomed to fail
title_sort not doomed to fail
topic Conformal Field Theory
Discrete Symmetries
Sigma Models
url http://link.springer.com/article/10.1007/JHEP09(2018)062
work_keys_str_mv AT annetaormina notdoomedtofail
AT katrinwendland notdoomedtofail