Results 51 to 60 of about 63,915 (257)
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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Tackling tangledness of cosmic strings by knot polynomial topological invariants
, 2016 Cosmic strings in the early universe have received revived interest in recent years. In this paper we derive these structures as topological defects from singular distributions of the quintessence field of dark energy.
Huang, Yong-Chang, Li, Xinfei, Liu, Xin
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S-duality and Topological Strings [PDF]
, 2004 In this paper we show how S-duality of type IIB superstrings leads to an S-duality relating A and B model topological strings on the same Calabi-Yau as had been conjectured recently: D-instantons of the B-model correspond to A-model perturbative ...
A. Iqbal +22 more
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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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Membranes for Topological M-Theory
, 2005 We formulate a theory of topological membranes on manifolds with G_2 holonomy. The BRST charges of the theories are the superspace Killing vectors (the generators of global supersymmetry) on the background with reduced holonomy G_2.
A. Neitzke +19 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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Stable Z-strings with topological polarization in two Higgs doublet model
Journal of High Energy Physics, 2022 We find that a Z-string is stable in a wide range of parameter space of the two Higgs doublet model due to a split into a pair of two topological Z-strings with fractional Z fluxes.
Minoru Eto, Yu Hamada, Muneto Nitta
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Stable vs Unstable Vortices in SQCD
, 2005 We give a topological classification of stable and unconfined massive particles and strings (and some instantons) in worldvolume theories of M5-branes and their dimensional reductions, generalizing Witten's classification of strings in SYM. In particular
A. Hanany +12 more
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