Results 31 to 40 of about 448,148 (200)

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

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   +3 more sources

Topological Field Theory Interpretation of String Topology [PDF]

open access: yesCommunications in Mathematical Physics, 2003
ISSN:0010 ...
Cattaneo Alberto S.   +2 more
openaire   +5 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

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

Elliptic genus of E-strings

open access: yesJournal of High Energy Physics, 2017
We study a family of 2d N = 0 , 4 $$ \mathcal{N}=\left(0,\ 4\right) $$ gauge theories which describes at low energy the dynamics of E-strings, the M2-branes suspended between a pair of M5 and M9 branes. The gauge theory is engineered using a duality with
Joonho Kim   +4 more
doaj   +1 more source

Topological string entanglement [PDF]

open access: yesJournal of High Energy Physics, 2019
Abstract We investigate how topological entanglement of Chern-Simons theory is captured in a string theoretic realization. Our explorations are motivated by a desire to understand how quantum entanglement of low energy open string degrees of freedom is encoded in string theory (beyond the oft discussed classical gravity limit ...
Hubeny, Veronika E   +2 more
openaire   +6 more sources

Rational string topology

open access: yesJournal of the European Mathematical Society, 2007
We use the computational power of rational homotopy theory to provide an explicit cochain model for the loop product and the string bracket of a 1-connected closed manifold M . We prove that the loop homology of
Félix, Yves   +2 more
openaire   +4 more sources

Radiation from global topological strings using adaptive mesh refinement: Methodology and massless modes [PDF]

open access: yesPhysical Review D, 2019
We implement adaptive mesh refinement (AMR) simulations of global topological strings using the public numerical relativity code, GRChombo. We perform a quantitative investigation of the dynamics of single sinusoidally displaced string configurations ...
Amelia Drew, E. Shellard
semanticscholar   +1 more source

Topological amplitudes in string theory [PDF]

open access: yesNuclear Physics B, 1994
We show that certain type II string amplitudes at genus $g$ are given by the topological partition function $F_g$ discussed recently by Bershadsky, Cecotti, Ooguri and Vafa. These amplitudes give rise to a term in the four-dimensional effective action of the form $\sum_g F_g W^{2g}$, where $W$ is the chiral superfield of $N=2$ supergravitational ...
Antoniadis, I.   +3 more
openaire   +2 more sources

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