Results 121 to 130 of about 129,145 (261)

Octonionic Magical Supergravity, Niemeier Lattices, and Exceptional & Hilbert Modular Forms

Fortschritte der Physik, Volume 72, Issue 2, February 2024.
Abstract The quantum degeneracies of Bogomolny‐Prasad‐Sommerfield (BPS) black holes of octonionic magical supergravity in five dimensions are studied. Quantum degeneracy is defined purely number theoretically as the number of distinct states in charge space with a given set of invariant labels.
Murat Günaydin, Abhiram Kidambi
wiley   +1 more source

Evolutionary Algorithms for Multi‐Center Solutions

Fortschritte der Physik, Volume 72, Issue 2, February 2024.
Abstract Large classes of multi‐center supergravity solutions have been constructed in the study of supersymmetric black holes and their microstates. Many smooth multi‐center solutions have the same charges as supersymmetric black holes, with all centers deep inside a long black‐hole‐like throat.
Sami Rawash, David Turton
wiley   +1 more source

Positivity of the hypergeometric Coon amplitude

Journal 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

Non-relativistic heterotic string theory

Journal 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

Pohlmeyer reduction for superstrings in AdS space

, 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

Instantons in sine-Liouville theory

Journal of High Energy Physics
We compute instanton corrections to the partition function of sine-Liouville (SL) theory, which provides a worldsheet description of two-dimensional string theory in a non-trivial tachyon background.
Sergei Alexandrov, Raghu Mahajan, Ashoke Sen   +2 more
doaj   +1 more source

Note on W3 Realizations of the Bosonic String

, 1994
In order to investigate to what extent string theories are different vacua of a general string theory (the ``universal string"), we discuss realizations of the bosonic string as particular background of certain types of $W$-strings.
Bais, Bastianelli, Bastianelli, Bastianelli, Bergshoeff, Berkovits, Berkovits, Berkovits, Bershadsky, Bershadsky, Figueroa-O'Farrill, Fiorenzo Bastianelli, Ishikawa, Khviengia, Krinovos, Kunitomo, Nobuyoshi Ohta, Ohta, Polyakov, Thielemans   +19 more
core   +2 more sources

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

Journal 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, Mariana Graña, Sergio Iguri, Carmen Nuñez   +3 more
doaj   +1 more source

Topics in String Theory and Quantum Gravity

, 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  

Stringy scaling of multi-tensor hard string scattering amplitudes and the K-identities

Journal of High Energy Physics
We calculate n-point hard string scattering amplitudes (HSSA) with n − 2 tachyons and 2 tensor states at arbitrary mass levels. We discover the stringy scaling behavior of these HSSA.
Sheng-Hong Lai, Jen-Chi Lee, Yi Yang
doaj   +1 more source