Results 51 to 60 of about 63,806 (262)

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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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, A.A. Gerasimov, B. Pioline, Bengt E.W Nilsson, D. Joyce, E. Witten, J. de Boer, J. de Boer, J.A. Harvey, Ling Bao, M. Graña, Martin Cederwall, N. Berkovits, N. Hitchin, N. Hitchin, N. Nekrasov, P.A. Grassi, P.K. Townsend, R. Dijkgraaf, Viktor Bengtsson   +19 more
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The Shapes of Dirichlet Defects [PDF]

, 2003
If the vacuum manifold of a field theory has the appropriate topological structure, the theory admits topological structures analogous to the D-branes of string theory, in which defects of one dimension terminate on other defects of higher dimension. The
A. Campos, A. Chamblin, A. Hashimoto, A. Hashimoto, A. Vilenkin, A. Vilenkin, Antonio De Felice, B.S. Ryden, C.G. Callan Jr., D. Bazeia, D. Bazeia, D. Bazeia, E. Witten, E. Witten, G. Dvali, G.E. Volovik, G.R. Dvali, G.R. Dvali, G.W. Gibbons, G.W. Gibbons, J. Dai, J. Polchinski, J. Polchinski, J. Polchinski, J.P. Gauntlett, J.R. Morris, J.R. Morris, J.R. Morris, K. Holland, M. Hindmarsh, M. Trodden, M.B. Hindmarsh, Mark Bowick, Mark Trodden, P. Horava, P. Horava, P.M. Saffin, P.S. Howe, S. Alexander, S.C. Davis, S.C. Davis, S.M. Carroll, S.M. Carroll, S.M. Carroll, See section 19 of W.H. Press, See section 19 of W.H. Press, T.W.B. Kibble, U. Trottenberg   +47 more
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SCFTs, holography, and topological strings [PDF]

Surveys in Differential Geometry, 2018
115 pages, 36 ...
Hayashi, Hirotaka, Jefferson, Patrick, Kim, Hee-Cheol, Ohmori, Kantaro, Vafa, Cumrun   +4 more
openaire   +2 more sources

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
doaj   +1 more source

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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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^
openaire   +4 more sources

Monopoles on strings

, 2015
In cosmological scenarios based on grand unification, string theory or braneworlds, many kinds of topological or non-topological defects, including monopoles and cosmic strings, are predicted to be formed in the early universe.
Kibble, T. W. B., Vachaspati, Tanmay
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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, A. Hanany, A. Yung, F. Cachazo, I.R. Klebanov, Jarah Evslin, N. Sakai, R. Auzzi, S. Bolognesi, S.S. Gubser, Stefano Bolognesi, T. Eguchi, Y. Isozumi   +12 more
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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, A. Neitzke, A. Okounkov, A.S. Losev, A.S. Losev, C Vafa, C. Vafa, C.H. Taubes, D. Maulik, E. Witten, E. Witten, H Ooguri, H. Ooguri, M. Aganagic, M. Bershadsky, M.F. Atiyah, N Nekrasov, R. Gopakumar, R. Gopakumar, S. Donaldson, S. Kachru, S.K. Donaldson, T.W. Grimm   +22 more
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