Results 101 to 110 of about 130,580 (217)

Non-relativistic heterotic string theory

open access: yesJournal of High Energy Physics
In this work we consider heterotic-gravity as the low-energy approximation to heterotic string theory. We define a consistent non-relativistic limit of heterotic gravity that includes the Yang-Mills Chern-Simons term.
Eric A. Bergshoeff, Luca Romano
doaj   +1 more source

Pair Creation of Open Strings in an Electric Field

open access: yes, 1992
We calculate exactly the rate of pair production of open bosonic and supersymmetric strings in a constant electric field. The rate agrees with Schwinger's classic result in the weak-field limit, but diverges when the electric field approaches some ...
Abouelsaood   +15 more
core   +1 more source

Directly from H-flux to the family of three nonlocal R-flux theories

open access: yesJournal of High Energy Physics, 2019
In this article we consider T-dualization of the 3D closed bosonic string in the weakly curved background — constant metric and Kalb-Ramond field with one nonzero component, B xy = Hz, where field strength H is infinitesimal.
B. Nikolić, D. Obrić
doaj   +1 more source

Positivity of the hypergeometric Coon amplitude

open access: yesJournal of High Energy Physics
We utilize a novel method for the partial-wave unitarity recently suggested in [1] to analyse the hypergeometric Coon amplitude. In this approach we use a new type of harmonic numbers as a basis.
Bo Wang
doaj   +1 more source

Pohlmeyer reduction for superstrings in AdS space

open access: yes, 2012
The Pohlmeyer reduced equations for strings moving only in the AdS subspace of AdS_5 x S^5 have been used recently in the study of classical Euclidean minimal surfaces for Wilson loops and some semiclassical three-point correlation functions.
Hoare, B., Tseytlin, A. A.
core   +1 more source

Cuts and contours

open access: yesJournal of High Energy Physics
The traditional formulation of string amplitudes via worldsheet integrals provides a parametrization of the moduli space that fails to expose the complete singularity structure of the amplitudes.
Carolina Figueiredo, Marcos Skowronek
doaj   +1 more source

The bosonic string on string-size tori from double field theory

open access: yesJournal of High Energy Physics, 2017
We construct the effective action for toroidal compactifications of bosonic string theory from generalized Scherk-Schwarz reductions of double field theory.
Yago Cagnacci   +3 more
doaj   +1 more source

Topics in String Theory and Quantum Gravity

open access: yes, 1992
These are the lecture notes for the Les Houches Summer School on Quantum Gravity held in July 1992. The notes present some general critical assessment of other (non-string) approaches to quantum gravity, and a selected set of topics concerning what we ...
Alvarez-Gaume, L., Vazquez-Mozo, M. A.
core  

(m, n)-string and D1-brane in stringy Newton-Cartan background

open access: yesJournal of High Energy Physics, 2019
This paper is devoted to the analysis of (m, n)-string in stringy Newton-Cartan background. We start with the Hamiltonian constraint for (m, n)-string in general background and perform limiting procedure on metric and NSNS and Ramond-Ramond two form ...
J. Klusoň
doaj   +1 more source

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