Results 21 to 30 of about 63,806 (262)
Perturbative string amplitudes are correctly derived from the string geometry theory, which is one of the candidates of a non-perturbative formulation of string theory. In order to derive non-perturbative effects rather easily, we formulate topological string geometry theory.
Sato, Matsuo, Sugimoto, Yuji
openaire +4 more sources
Hypermultiplets and topological strings [PDF]
The c-map relates classical hypermultiplet moduli spaces in compactifications of type II strings on a Calabi-Yau threefold to vector multiplet moduli spaces via a further compactification on a circle. We give an off-shell description of the c-map in N=2 superspace.
Rocek, M., Vafa, C., Vandoren, S.
openaire +3 more sources
Electric-Current-Assisted Nucleation of Zero-Field Hopfion Rings. [PDF]
This work reports a novel and efficient nucleation protocol for 3D localized topological magnetic solitons‐hopfion rings in chiral magnets using pulsed electric currents. By using Lorentz transmission electron microscopy and topological analysis, we report characteristic features and extraordinary stability of hopfion rings in zero or inverted external
Chen X +12 more
europepmc +2 more sources
Topological Field Theory Interpretation of String Topology [PDF]
ISSN:0010 ...
Cattaneo Alberto S. +2 more
openaire +5 more sources
String topology in three flavors [PDF]
We describe two major string topology operations, the Chas–Sullivan product and the Goresky–Hingston coproduct, from geometric and algebraic perspectives. The geometric construction uses Thom–Pontrjagin intersection theory while the algebraic construction is phrased in terms of Hochschild homology.
Naef, Florian +2 more
openaire +4 more sources
Topological string entanglement [PDF]
Abstract We investigate how topological entanglement of Chern-Simons theory is captured in a string theoretic realization. Our explorations are motivated by a desire to understand how quantum entanglement of low energy open string degrees of freedom is encoded in string theory (beyond the oft discussed classical gravity limit ...
Hubeny, Veronika E +2 more
openaire +6 more sources
We use the computational power of rational homotopy theory to provide an explicit cochain model for the loop product and the string bracket of a 1-connected closed manifold M . We prove that the loop homology of
Félix, Yves +2 more
openaire +4 more sources
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
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Topological G2 and Spin(7) strings at 1-loop from double complexes
We study the topological G 2 and Spin(7) strings at 1-loop. We define new double complexes for supersymmetric NSNS backgrounds of string theory using generalised geometry.
Anthony Ashmore +4 more
doaj +1 more source
Confining strings with topological term [PDF]
11 pages ...
Diamantini, M. C. +2 more
openaire +2 more sources

