Results 51 to 60 of about 571,699 (217)

Direct integration of the topological string [PDF]

open access: yesJournal of High Energy Physics, 2007
We present a new method to solve the holomorphic anomaly equations governing the free energies of type B topological strings. The method is based on direct integration with respect to the non-holomorphic dependence of the amplitudes, and relies on the interplay between non-holomorphicity and modularity properties of the topological string amplitudes ...
Albrecht Klemm   +4 more
openaire   +5 more sources

Hodge decomposition of string topology [PDF]

open access: yesForum of Mathematics, Sigma, 2021
AbstractLetXbe a simply connected closed oriented manifold of rationally elliptic homotopy type. We prove that the string topology bracket on the$S^1$-equivariant homology$ {\overline {\text {H}}}_\ast ^{S^1}({\mathcal {L}} X,{\mathbb {Q}}) $of the free loop space ofXpreserves the Hodge decomposition of$ {\overline {\text {H}}}_\ast ^{S^1}({\mathcal {L}
Ajay C. Ramadoss   +2 more
openaire   +5 more sources

Transplanckian censorship and global cosmic strings

open access: yesJournal of High Energy Physics, 2017
Large field excursions are required in a number of axion models of inflation. These models also possess global cosmic strings, around which the axion follows a path mirroring the inflationary trajectory. Cosmic strings are thus an interesting theoretical
Matthew J. Dolan   +3 more
doaj   +1 more source

Electroweak axion string and superconductivity

open access: yesJournal of High Energy Physics, 2021
We study the axion strings with the electroweak gauge flux in the DFSZ axion model and show that these strings, called the electroweak axion strings, can exhibit superconductivity without fermionic zeromodes. We construct three types of electroweak axion
Yoshihiko Abe   +2 more
doaj   +1 more source

Real topological string amplitudes [PDF]

open access: yesJournal of High Energy Physics, 2017
We discuss the physical superstring correlation functions in type I theory (or equivalently type II with orientifold) that compute real topological string amplitudes. We consider the correlator corresponding to holomorphic derivative of the real topological amplitude $G_ $, at fixed worldsheet Euler characteristic $ $.
Kumar S. Narain   +3 more
openaire   +4 more sources

Topological solitons in helical strings

open access: yesPhysical Review E, 2015
5 pages 4 figures.
Cristiano Nisoli   +2 more
openaire   +5 more sources

Topological Strings and Integrable Hierarchies [PDF]

open access: yesCommunications in Mathematical Physics, 2005
We consider the topological B-model on local Calabi-Yau geometries. We show how one can solve for the amplitudes by using W-algebra symmetries which encodes the symmetries of holomorphic diffeomorphisms of the Calabi-Yau. In the highly effective fermionic/brane formulation this leads to a free fermion description of the amplitudes. Furthermore we argue
Aganagic, Mina   +4 more
openaire   +6 more sources

Matrix Models from Operators and Topological Strings, 2 [PDF]

open access: yesAnnales de l'Institute Henri Poincare. Physique theorique, 2015
The quantization of mirror curves to toric Calabi–Yau threefolds leads to trace class operators, and it has been conjectured that the spectral properties of these operators provide a non-perturbative realization of topological string theory on these ...
R. Kashaev, M. Mariño, Szabolcs Zakany
semanticscholar   +2 more sources

Topological stars, black holes and generalized charged Weyl solutions

open access: yesJournal of High Energy Physics, 2021
We construct smooth static bubble solutions, denoted as topological stars, in five-dimensional Einstein-Maxwell theories which are asymptotic to ℝ1,3×S1. The bubbles are supported by allowing electromagnetic fluxes to wrap smooth topological cycles.
Ibrahima Bah, Pierre Heidmann
doaj   +1 more source

Topological Strings from WZW Models [PDF]

open access: yesPhys.Lett. B352 (1995) 286-297, 1994
We show that the BRST structure of the topological string is encoded in the ``small'' $N=4$ superconformal algebra, enabling us to obtain, in a non-trivial way, the string theory from hamiltonian reduction of $A(1|1)$. This leads to the important conclusion that not only ordinary string theories, but topological strings as well, can be obtained, or ...
arxiv   +1 more source

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