Results 101 to 110 of about 448,148 (200)
Holomorphic supergravity in ten dimensions and anomaly cancellation
Journal of High Energy PhysicsWe formulate a ten-dimensional version of Kodaira-Spencer gravity on a Calabi-Yau five-fold that reproduces the classical Maurer-Cartan equation governing supersymmetric heterotic moduli.
Anthony Ashmore +3 more
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Topological Phase Transition in a One-Dimensional Elastic String System
Crystals, 2019 We show that topological interface mode can emerge in a one-dimensional elastic string system which consists of two periodic strings with different band topologies.
Ya-Wen Tsai +3 more
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Topology of strings: Median string is NP-complete
Theoretical Computer Science, 2000 Given a set of strings, the problem of finding a string that minimises its distance to the set is directly related with problems frequently encountered in areas involving pattern recognition or computational biology. Based on the Levenshtein (or edit) distance, different definitions of distances between a string and a set of strings can be adopted.
de la Higuera, C., Casacuberta, F.
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String topology for Lie groups [PDF]
Journal of Topology, 2010 In 1999 Chas and Sullivan showed that the homology of the free loop space of an oriented manifold admits the structure of a Batalin-Vilkovisky algebra. In this paper we give a direct description of this Batalin-Vilkovisky algebra in the case that the manifold is a compact Lie group G. Our answer is phrased in terms of the homology of G, the homology of
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Topological structures, dark matter and gravitational waves in E6
Journal of High Energy PhysicsWe discuss the appearance of topological structures from the spontaneous breaking of E 6 to the Standard Model via its maximal subgroup SO(10) × U(1) ψ . They include dumbbells, metastable strings, as well as domain walls bounded by necklaces. We provide
Rinku Maji, Qaisar Shafi, Amit Tiwari
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Electromagnetic vacuum fluctuations around a cosmic string in de Sitter spacetime
European Physical Journal C: Particles and Fields, 2017 The electromagnetic field correlators are evaluated around a cosmic string in background of $$(D+1)$$ ( D + 1 ) -dimensional dS spacetime assuming that the field is prepared in the Bunch–Davies vacuum state.
A. A. Saharian +2 more
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Open string diagrams I: Topological type
Journal of Mathematical Physics, 1993 An arbitrary Feynman graph for string field theory interactions is analyzed and the homeomorphism type of the corresponding world sheet surface is completely determined even in the nonorientable cases. Algorithms are found to mechanically compute the topological characteristics of the resulting surface from the structure of the signed oriented graph ...
Nag, Subhashis, Sankaran, Parameswaran
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Quantum curves as quantum distributions
Journal of High Energy Physics, 2019 Topological strings on toric Calabi-Yau threefolds can be defined non-perturbatively in terms of a non-interacting Fermi gas of N particles. Using this approach, we propose a definition of quantum mirror curves as quantum distributions on phase space ...
Marcos Mariño, Szabolcs Zakany
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Large N instantons from topological strings
SciPost PhysicsThe $1/N$ expansion of matrix models is asymptotic, and it requires non-perturbative corrections due to large $N$ instantons. Explicit expressions for large $N$ instanton amplitudes are known in the case of Hermitian matrix models with one cut, but not ...
Marcos Mariño, Ramon Miravitllas
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TOPOLOGICAL SPIN-STATISTICS THEOREMS FOR STRINGS
Modern Physics Letters A, 1992 Recently, a topological proof of the spin-statistics theorem has been proposed for a system of point particles. It does not require relativity or field theory, but assumes the existence of antiparticles. We extend this proof to a system of string loops in three space dimensions and show that by assuming the existence of antistring loops, one can prove
Balachandran, A. P. +5 more
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