Results 31 to 40 of about 64,249 (172)

The T-dual symmetries of a bosonic string

open access: yesEuropean Physical Journal C: Particles and Fields, 2018
We investigate whether the symmetry transformations of a bosonic string are connected by T-duality. We start with a standard closed string theory. We continue with a modified open string theory, modified to preserve the symmetry transformations possessed
Ljubica Davidović, Branislav Sazdović
doaj   +1 more source

Double field theory and geometric quantisation

open access: yesJournal of High Energy Physics, 2021
We examine various properties of double field theory and the doubled string sigma model in the context of geometric quantisation. In particular we look at T-duality as the symplectic transformation related to an alternative choice of polarisation in the ...
Luigi Alfonsi, David S. Berman
doaj   +1 more source

Solitons, Black Holes and Duality in String Theory [PDF]

open access: yesNucl.Phys.Proc.Suppl. 61A (1998) 99-110, 1997
These lectures are intended as an introduction to some of the basic aspects of string solitons, duality and black holes. We begin with a discussion of the role of classical solutions in duality, then focus on string/string duality and fundamental membranes.
arxiv   +1 more source

Topological open/closed string dualities: matrix models and wave functions

open access: yesJournal of High Energy Physics, 2019
We sharpen the duality between open and closed topological string partition functions for topological gravity coupled to matter. The closed string partition function is a generalized Kontsevich matrix model in the large dimension limit.
Sujay K. Ashok, Jan Troost
doaj   +1 more source

Effective action of heterotic string theory at order α′2

open access: yesJournal of High Energy Physics, 2023
Upon examining the effective action of the heterotic string theory at order α′2, an inconsistency between the Chern-Simons coupling Ω2 and T-duality has been discovered. To address this issue, we introduce 60 parity-even independent geometrical couplings
Mohammad R. Garousi
doaj   +1 more source

Unification of String Dualities [PDF]

open access: yesNucl.Phys.Proc.Suppl.58:5-19,1997, 1996
We argue that all conjectured dualities involving various string, M- and F- theory compactifications can be `derived' from the conjectured duality between type I and SO(32) heterotic string theory, T-dualities, and the definition of M- and F- theories.
arxiv   +1 more source

T-duality to scattering amplitude and Wilson loop in non-commutative super Yang-Mills theory

open access: yesJournal of High Energy Physics, 2018
We first perform bosonic T-duality transformation on one of the marginal TsT (T-duality, shift, T-duality)-deformed AdS 5×S 5 spacetime, which corresponds to 4D N=4 $$ \mathcal{N}=4 $$ non-commutative super Yang-Mills theory (NCSYM).
Song He, Hongfei Shu
doaj   +1 more source

String Dualities from Matrix Theory: A Summary [PDF]

open access: yesNucl.Phys.Proc.Suppl. 68 (1998) 374-380, 1997
I review the appearance, within Matrix theory, of the $SL(5,Z)$ U-duality group of M-theory on $T^4$, and the duality between M-theory on K3 and the Heterotic string on $T^3$. In both cases the duality is geometrical and manifest.
arxiv   +1 more source

The exceptional sigma model

open access: yesJournal of High Energy Physics, 2018
We detail the construction of the exceptional sigma model, which describes a string propagating in the “extended spacetime” of exceptional field theory. This is to U-duality as the doubled sigma model is to T-duality. Symmetry specifies the Weylinvariant
Alex S. Arvanitakis, Chris D. A. Blair
doaj   +1 more source

Stringy ER = EPR

open access: yesJournal of High Energy Physics, 2022
The ER = EPR correspondence relates a superposition of entangled, disconnected spacetimes to a connected spacetime with an Einstein-Rosen bridge. We construct examples in which both sides may be described by weakly-coupled string theory.
Daniel Louis Jafferis, Elliot Schneider
doaj   +1 more source

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