Results 51 to 60 of about 839,748 (232)
Stringy corrections to a time-dependent background solution of string and M-Theory [PDF]
We consider one of the simplest time-dependent backgrounds in M-theory, describing the shrinking away of the M-theory dimension with the other spatial dimensions static. As the M-theory dimension becomes small, the situation becomes well-described by string theory in a singular cosmological background where the string coupling tends to zero but the ...
arxiv +1 more source
2-Group symmetries and M-theory
Quantum Field Theories engineered in M-theory can have 2-group symmetries, mixing 0-form and 1-form symmetry backgrounds in non-trivial ways. In this paper we develop methods for determining the 2-group structure from the boundary geometry of the M ...
Michele Del Zotto, Iñaki García Etxebarria, Sakura Schäfer-Nameki
doaj +1 more source
Monads, strings, and M-theory [PDF]
36 pages, TeX, harvmac, minor corrections with added ...
Hofman, Christiaan, PARK, JAE SUK
openaire +5 more sources
F-term Inflation in M-theory with Five-branes [PDF]
We study F-term inflation in M-theory with and without five-brane moduli fields. We show the slow rolling condition is not satisfied in M-theory without five-brane moduli fields, but it can be satisfied in the case with non-vanishing F-terms of five-brane moduli fields.
arxiv +1 more source
M-theory from the superpoint [PDF]
v2: minor corrections, improved exposition.
Huerta, J., Schreiber, U. (Urs)
openaire +5 more sources
Matrix Description of M-theory on $T^6$ [PDF]
We give some evidence that the worldvolume theory of the M-theory KK 6-brane is governed by a non-critical membrane theory. We use this theory to give a matrix description of M-theory on $T^6$.
arxiv +1 more source
Sasakian manifolds and M-theory [PDF]
We extend the link between Einstein Sasakian manifolds and Killing spinors to a class of $ $-Einstein Sasakian manifolds, both in Riemannian and Lorentzian settings, characterising them in terms of generalised Killing spinors. We propose a definition of supersymmetric M-theory backgrounds on such a geometry and find a new class of such backgrounds ...
José Figueroa-O'Farrill, Andrea Santi
openaire +8 more sources
Archetypical Signs of the Kolomyika in the Ukrainian Music of the 21st Century
The article is devoted to studying the implementation/manifestation/reflection of archetypal features of kolomyika, as a traditional genre of Ukrainian folk art, in the music of Ukrainian composers.
Maryna VARAKUTA+2 more
doaj +1 more source
Downlink Performance of Optical OFDM in Outdoor Visible Light Communication
Visible light communication (VLC) is a promising ubiquitous design alternative for supporting high data rates. Its application has been primarily oriented to indoor scenarios, but the proliferation of light-emitting diodes in the streets warrants its ...
Borja Genoves Guzman+4 more
doaj +1 more source
Perturbative Anomalies of the M-5-brane [PDF]
We discuss several mechanisms to cancel the anomalies of a 5-brane embedded in M-theory. Two of them work, provided we impose suitable conditions either on the 11-dimensional manifold of M-theory or on the 4-form field strength of M-theory.
arxiv +1 more source