Results 21 to 30 of about 315,243 (203)

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 Open Strings on Orbifolds [PDF]

open access: yesCommunications in Mathematical Physics, 2010
38 ...
Bouchard, V   +3 more
openaire   +4 more sources

Aspects of Topological String Theory [PDF]

open access: yes, 2008
Two aspects of the topological string and its applications are considered in this thesis. Firstly, non-perturbative contributions to the OSV conjecture relating four-dimensional extremal black holes and the closed topological string partition function ...
Cook, Paul Langabi Hogan
core   +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

Direct integration of the topological string [PDF]

open access: yesJournal of High Energy Physics, 2007
We present a new method to solve the holomorphic anomaly equations governing the free energies of type B topological strings. The method is based on direct integration with respect to the non-holomorphic dependence of the amplitudes, and relies on the interplay between non-holomorphicity and modularity properties of the topological string amplitudes ...
Grimm, Thomas W.   +3 more
openaire   +5 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

Bifurcation of a topological skyrmion string

open access: yesPhysical Review B, 2022
6 pages, 3 ...
Xia, Jing   +8 more
openaire   +3 more sources

Topology of strings: Median string is NP-complete

open access: yesTheoretical Computer Science, 2000
Given a set of strings, the problem of finding a string that minimises its distance to the set is directly related with problems frequently encountered in areas involving pattern recognition or computational biology. Based on the Levenshtein (or edit) distance, different definitions of distances between a string and a set of strings can be adopted.
Colin de la Higuera   +1 more
openaire   +1 more source

Topological strings on elliptic fibrations [PDF]

open access: yesCommunications in Number Theory and Physics, 2014
We study topological string theory on elliptically fibered Calabi-Yau threefolds using mirror symmetry. We compute higher genus topological string amplitudes and express these in terms of polynomials of functions constructed from the special geometry of the moduli space. The polynomials are fixed by the holomorphic anomaly equations supplemented by the
Alim, Murad, Scheidegger, Emanuel
openaire   +3 more sources

D=5 holomorphic Chern-Simons and the pure spinor superstring

open access: yesJournal of High Energy Physics, 2023
The physical states of D=5 holomorphic Chern-Simons theory correspond to on-shell D=10 open superstring states in the cohomology of q +, where q + is one of the 16 spacetime supersymmetry generators.
Nathan Berkovits
doaj   +1 more source

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