Results 31 to 40 of about 935 (235)
Topological Open Strings on Orbifolds [PDF]
38 ...
Bouchard, V +3 more
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D=5 holomorphic Chern-Simons and the pure spinor superstring
The physical states of D=5 holomorphic Chern-Simons theory correspond to on-shell D=10 open superstring states in the cohomology of q +, where q + is one of the 16 spacetime supersymmetry generators.
Nathan Berkovits
doaj +1 more source
Topological amplitudes in string theory [PDF]
We show that certain type II string amplitudes at genus $g$ are given by the topological partition function $F_g$ discussed recently by Bershadsky, Cecotti, Ooguri and Vafa. These amplitudes give rise to a term in the four-dimensional effective action of the form $\sum_g F_g W^{2g}$, where $W$ is the chiral superfield of $N=2$ supergravitational ...
Antoniadis, I. +3 more
openaire +2 more sources
Topological solitons in helical strings
5 pages 4 figures.
Cristiano Nisoli, Alexander V. Balatsky
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Refined topological amplitudes from the Ω-background in string theory
It was recently shown that the N $$ \mathcal{N} $$ = 2 string topological amplitudes in the heterotic weak coupling limit generate a six-dimensional Melvin space, providing a description of the Ω-background in string theory, where string propagation can ...
Carlo Angelantonj +3 more
doaj +1 more source
Direct integration of the topological string [PDF]
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 ...
Grimm, Thomas W. +3 more
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Transplanckian censorship and global cosmic strings
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
The Topological Open String Wavefunction [PDF]
30 pages, 4 figures; v2: misprints ...
Grassi Alba +2 more
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Topological Nambu monopole in two Higgs doublet models
We show that a topological Nambu monopole exists as a regular solution for a large range of parameters in two Higgs doublet models, contrary to the standard model admitting only non-topological Nambu monopoles.
Minoru Eto +3 more
doaj +1 more source
Electroweak axion string and superconductivity
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

