Results 61 to 70 of about 1,327,280 (358)

Plane wave gravitons, curvature singularities and string physics

, 1991
Bounded (compactifying) potentials arising from a conspiracy between plane wave graviton and dilaton condensates are discussed. So are string propagation and supersymmetry in space-times with curvature singularities.
R. Brooks
semanticscholar   +1 more source

The Standard Model from String Theory: What Have We Learned? [PDF]

Annual Review of Nuclear and Particle Science
Amid all candidates of physics beyond the Standard Model, string theory provides a unique proposal for incorporating gauge and gravitational interactions.
F. Marchesano, Gary Shiu, Timo Weigand
semanticscholar   +1 more source

Supersymmetric domain walls in 7D maximal gauged supergravity

European Physical Journal C: Particles and Fields, 2019
We give a large class of supersymmetric domain walls in maximal seven-dimensional gauged supergravity with various types of gauge groups. Gaugings are described by components of the embedding tensor transforming in representations $$\mathbf {15}$$ 15 and
Parinya Karndumri, Patharadanai Nuchino
doaj   +1 more source

Quarter-BPS states, multi-symmetric functions and set partitions

Journal of High Energy Physics, 2021
We give a construction of general holomorphic quarter BPS operators in N $$ \mathcal{N} $$ = 4 SYM at weak coupling with U(N) gauge group at finite N. The construction employs the Möbius inversion formula for set partitions, applied to multi-symmetric ...
Christopher Lewis-Brown, Sanjaye Ramgoolam   +1 more
doaj   +1 more source

String Cosmology - Large-Field Inflation in String Theory [PDF]

, 2014
This is a short review of string cosmology. We wish to connect string-scale physics as closely as possible to observables accessible to current or near-future experiments.
Westphal, Alexander
core   +2 more sources

Reductions of exceptional field theories

Journal of High Energy Physics, 2020
Double Field Theory (DFT) and Exceptional Field Theory (EFT), collectively called ExFTs, have proven to be a remarkably powerful new framework for string and M-theory.
David S. Berman, Ray Otsuki
doaj   +1 more source

TeV-Scale strings

, 2014
This article discusses the status of string physics where the string tension is around the TeV scale. The article covers model building basics for perturbative strings, based on D-brane configurations. The effective low energy physics description of such
Berenstein, David
core   +1 more source

String Landscape and the Standard Model of Particle Physics

, 2007
In this paper we describe ideas about the string landscape, and how to relate it to the physics of the Standard Model of particle physics. First, we give a short status report about heterotic string compactifications. Then we focus on the statistics of D-
Lust, Dieter
core   +1 more source

What if string theory has no de Sitter vacua? [PDF]

International Journal of Modern Physics D, 2018
We present a brief overview of attempts to construct de Sitter vacua in string theory and explain how the results of this 20-year endeavor could point to the fact that string theory harbors no de Sitter vacua at all.
U. Danielsson, T. Riet
semanticscholar   +1 more source

String Theory and General Methodology; a Reciprocal Evaluation

, 2011
String theory has been the dominating research field in theoretical physics during the last decades. Despite the considerable time elapse, no new testable predictions have been derived by string theorists and it is understandable that doubts have been ...
Johansson, Lars-Göran, Matsubara, Keizo
core   +1 more source