Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 8 of 8 for “"T-duality"”.
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New Perspectives on Operator Deformations and T-duality in String Theory
… in string compactifications, as well as T-duality from the worldsheet CFT perspective. We review, and bring into a contemporary context, a construction based on universal coordinates that can be used to define operators at one point in moduli space in terms of the operators at some …
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Searching for self-duality in non-maximally supersymmetric backgrounds
Fermionic T-duality is the generalisation to superspace of bosonic T-duality (i.e. to include fermionic degrees of freedom). Originally, T-duality described the equivalence relation between two physical theories, each living on a different background. However, this thesis is concerned with …
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Flux compactifications of Type II string theories under non-perturbative dualities
… The dualities are the Type IIA-IIB exchanging T duality, the self-symmetry of Type IIB S duality, the non-trivial combination of the two, U duality, and the generalisation of T duality to include Calabi-Yaus, mirror symmetry. The requirement of the effective theory superpotential being invariant …
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Aspects of double geometry and supersymmetric gauge theories
… is devoted to the interplay between manifest T-duality symmetry and higher-derivative corrections to the low-energy effective action of string theory. The second part focuses on exact results in supersymmetric gauge theories. We first discuss T-duality symmetry of string theory from various …
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Invertible Functorial Field Theory for Symmetry Breaking and Interactions in Quantum Field Theory
… maps from K-theory to twisted spin IFTs using T-duality and twisted versions of the spin orientation of K-theory [3]. We focus on two situations: weak phases [4, 5], which are SPTs protected by discrete translation symmetry, and primed phases [6], which are closely related to the famous tenfold …
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Topics in double field theory
… is motivated from this idea and it implements T-duality manifestly by doubling the coordinates. In this thesis we will mainly focus on the double field theory formulation of different string theories in its low energy limit: bosonic, heterotic, type II and its massive extensions, and M = 1 …
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Multiple M-branes and 3-algebras
… supersymmetric Yang-Mills theory. Upon further T-duality on a transverse torus we obtain a non-manifest-Lorentz-invariant description of five-dimensional maxi¬mally supersymmetric Yang-Mills which can be viewed as an M-theory description of M5-branes on T3.<br/>After reviewing work to describe …
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Μελέτες στη θεωρία χορδών και εφαρμογές της μη-Αβελιανής Τ-δυϊκότητας σε υπερβαρύτητα και στην αντιστοιχία AdS/CFT
Στην παρούσα διδακτορική διατριβή μελετάμε εφαρμογές οι οποίες σχετίζονται με την μη-Αβελιανή Τ-δυϊκότητα και την αντιστοιχία AdS/CFT. Στο πρώτο μέρος, το οποίο αντιστοιχεί στο πρώτο κεφάλαιο της διατριβής, παρουσιάζουμε συνοπτικά τα απαραίτητα μαθηματικά εργαλεία που απαιτούνται για την καλύτερη …