Results 1 to 10 of about 13,500,585 (301)
D-Branes in Para-Hermitian Geometries
We introduce T-duality invariant versions of D-branes in doubled geometry using a global covariant framework based on para-Hermitian geometry and metric algebroids.
Vincenzo Emilio Marotta +1 more
doaj +2 more sources
LaTeX file, 30 pages, 2 eps figures, 1 reference ...
Maggiore, Michele, Riotto, Antonio
openaire +5 more sources
Corrections made and some typographical errors ...
Carey, Alan +2 more
openaire +5 more sources
D-branes on K3-fibrations [PDF]
B-type D-branes are constructed on two different K3-fibrations over IP_1 using boundary conformal field theory at the rational Gepner points of these models. The microscopic CFT charges are compared with the Ramond charges of D-branes wrapped on holomorphic cycles of the corresponding Calabi-Yau manifold.
Kaste, P. +3 more
openaire +5 more sources
D-branes represent a key theoretical tool in the understanding of strongly coupled superstring theory and M-theory. They have led to many striking discoveries, including the precise microphysics underlying the thermodynamic behaviour of certain black holes, and remarkable holographic dualities between large-N gauge theories and gravity.
Johnson, Clifford V.
openaire +3 more sources
Aspects of brane world-volume dynamics in string theory [PDF]
PhDThis thesis investigates the non-abelian dynamics of D-Brane systems in String Theory, specifically focussing on the fate of the open string Tachyon.
Tallarita, Gianni
core +4 more sources
Cosmological creation of D-branes and anti-D-branes [PDF]
We argue that the early universe may be described by an initial state of space-filling branes and anti-branes. At high temperature this system is stable. At low temperature tachyons appear and lead to a phase transition, dynamics, and the creation of D-branes. These branes are cosmologically produced in a generic fashion by the Kibble mechanism.
Majumdar, Mahbub, Davis, Anne-Christine
openaire +2 more sources
A novel solution to the gravitino problem
In a general phenomenological model with local supersymmetry, the amount of massive gravitinos produced in early universe tends to violate the known dark matter density bound by many orders of magnitude.
Yu-Cheng Qiu, S.-H. Henry Tye
doaj +1 more source
Tachyon tunnelling in D-brane-anti-D-brane [PDF]
15 pages, 4 figures, Latex file, minor changes, reference ...
Bitaghsir, Kazem, Garousi, Mohammad R.
openaire +2 more sources
We study D-branes on the quintic CY by combining results from several directions: general results on holomorphic curves and vector bundles, stringy geometry and mirror symmetry, and the boundary states in Gepner models recently constructed by Recknagel and Schomerus, to begin sketching a picture of D-branes in the stringy regime.
Brunner, Ilka +3 more
openaire +3 more sources

