Results 11 to 20 of about 315,243 (203)

Topological Strings and Integrable Hierarchies [PDF]

open access: yesCommunications in Mathematical Physics, 2005
We consider the topological B-model on local Calabi-Yau geometries. We show how one can solve for the amplitudes by using W-algebra symmetries which encodes the symmetries of holomorphic diffeomorphisms of the Calabi-Yau. In the highly effective fermionic/brane formulation this leads to a free fermion description of the amplitudes. Furthermore we argue
Aganagic, M.   +4 more
openaire   +7 more sources

Cosmic necklaces in string theory and field theory [PDF]

open access: yes, 2010
PhDIn this thesis we investigate astrophysical phenomena which arise in models with compact extra dimensions, focussing on the cosmological consequences of strings which wrap cycles in the internal space. Embedding our strings in the Klebanov-Strassler
Lake, Matthew James
core   +4 more sources

Knot invariants and topological strings [PDF]

open access: yesNuclear Physics B, 2000
23 pages, harvmac, 3 figures; An error in the Schwinger computation in two dimensions corrected; references ...
Ooguri, Hirosi, Vafa, Cumrun
openaire   +4 more sources

String topology in three flavors [PDF]

open access: yesEMS Surveys in Mathematical Sciences, 2023
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 geometry

open access: yesNuclear Physics B, 2020
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

Magnetic skyrmion braids

open access: yesNature Communications, 2021
Skyrmions are topological two-dimensional spin textures that in three-dimensional systems resemble strings or tubes. Here, using transmission electron microscopy Zheng et al observe the braiding of skyrmion strings in FeGe and predict this phenomenon for
Fengshan Zheng   +7 more
doaj   +1 more source

Topological strings and Wilson loops

open access: yesJournal of High Energy Physics, 2022
We propose the refined topological string correspondence to the expectation values of half-BPS Wilson loop operators in 5d N $$ \mathcal{N} $$ = 1 gauge theory partition function on the Omega-deformed background ℝ ϵ 1 , 2 4 $$ {\mathbb{R}}_{\upepsilon_{1,
Min-xin Huang, Kimyeong Lee, Xin Wang
doaj   +1 more source

The Topological Open String Wavefunction [PDF]

open access: yesCommunications in Mathematical Physics, 2015
30 pages, 4 figures; v2: misprints ...
Grassi Alba   +2 more
openaire   +4 more sources

Stability of topological solitons, and black string to bubble transition

open access: yesJournal of High Energy Physics, 2022
We study the existence of smooth topological solitons and black strings as locally-stable saddles of the Euclidean gravitational action of five dimensional Einstein-Maxwell theory.
Ibrahima Bah   +2 more
doaj   +1 more source

Deformations of topological open strings [PDF]

open access: yesJournal of High Energy Physics, 2001
LaTeX 30 pages, corrected ...
Hofman, C., Ma, W.K.
openaire   +4 more sources

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