Results 71 to 80 of about 411,480 (264)
Advances in Theoretical and Mathematical Physics, 2005 We construct new topological theories related to sigma models whose target space is a seven dimensional manifold of G_2 holonomy. We define a new type of topological twist and identify the BRST operator and the physical states. Unlike the more familiar six dimensional case, our topological model is defined in terms of conformal blocks and not in terms ...
de Boer, J., Naqvi, A., Shomer, A.
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Compactified webs and domain wall partition functions
European Physical Journal C: Particles and Fields, 2017 In this paper we use the topological vertex formalism to calculate a generalization of the “domain wall” partition function of M-strings. This generalization allows calculation of partition function of certain compactified webs using a simple gluing ...
Khurram Shabbir
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STRINGS AND NON-TOPOLOGICAL SOLITONS [PDF]
Modern Physics Letters A, 1994 We have numerically calculated topological and non-topological solitons in two spatial dimensions with Chern-Simons term. Their quantum stability, as well as that of the Maxwell vortex, is analyzed by means of bounce instantons which involve three-dimensional strings and non-topological solitons.
Fiore, R. +3 more
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Non-Abelian strings and domain walls in two Higgs doublet models
Journal of High Energy Physics, 2018 Contrary to the standard model that does not admit topologically nontrivial solitons, two Higgs doublet models admit topologically stable vortex strings and domain walls. We numerically confirm the existence of a topological Z-string confining fractional
Minoru Eto +2 more
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Topological strings and Nekrasov's formulas [PDF]
Journal of High Energy Physics, 2003 38 pages, 4 figures, (v2) References added, Appendices expanded, (v3) Typos corrected, References ...
Eguchi, Tohru, Kanno, Hiroaki
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Spectral sequences in string topology [PDF]
Algebraic & Geometric Topology, 2011 In this paper, we investigate the behaviour of the Serre spectral sequence with respect to the algebraic structures of string topology in generalized homology theories, specificially with the Chas-Sullivan product and the corresponding coproduct and module structures. We prove compatibility for two kinds of fibre bundles: the fibre bundle $ ^n M \to L^
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Universal character, phase model and topological strings on $$\pmb {\mathbb {C}^3}$$ [PDF]
The European Physical Journal C, 2017 In this paper, we consider two different subjects: the algebra of universal characters$$S_{[\lambda ,\mu ]}(\mathbf{x},\mathbf{y})$$S[λ,μ](x,y)(a generalization of Schur functions) and the phase model of strongly correlated bosons.
Na Wang, Chuanzhong Li
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Advanced Design for Weakly Coupled Resonators by Automatic Active Optimization
Advanced Materials Technologies, EarlyView.An Automatic Active Optimization (AAO) strategy integrates machine learning predictors and genetic algorithms in a closed‐loop workflow. By iteratively expanding its dataset with new discoveries, AAO overcomes the limits of conventional methods. This approach finds superior microstructural designs beyond the initial sample space. We demonstrate this on
Wei Yue +8 more
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TOPOLOGICAL STRINGS ON NONCOMMUTATIVE MANIFOLDS [PDF]
International Journal of Geometric Methods in Modern Physics, 2004 We identify a deformation of the N=2 supersymmetric sigma model on a Calabi–Yau manifold X which has the same effect on B-branes as a noncommutative deformation of X. We show that for hyperkähler X such deformations allow one to interpolate continuously between the A-model and the B-model.
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