Results 101 to 110 of about 570 (144)

TASI Lectures on Perturbative String Theories [PDF]

open access: yes, 1996
These lecture notes are based on a course on string theories given by Hirosi Ooguri in the first week of TASI 96 Summer School at Boulder, Colorado. It is an introductory course designed to provide students with minimum knowledge before they attend more ...
Yin, Zheng, Ooguri, Hirosi
core  

Properties of enhançons in supergravity [PDF]

open access: yes, 2003
A certain class of naked singularities, related to N = 2 pure super Yang-Mills theory, are resolved in string theory with the enhançon mechanism. We study the properties of the enhançon in supergravity.
Dimitriadis, Apostolos A.
core  

G-structures and superstrings from the worldsheet

open access: yes, 2019
G-structures, where G is a Lie group, are a uniform characterisation of many differential geometric structures of interest in supersymmetric compactifications of string theories.
Marc-Antoine Fiset, Fiset, Marc-Antoine
core   +1 more source

Toward the construction of realistic models from Superstrings [PDF]

open access: yes, 2013
総合研究大学院大学博士(理学)The superstring theory has been considered as an important candidate for a fundamental theory. There exist five consistent superstring theory: type I, type IIA, type IIB, SO(32) heterotic and E8×E8 heterotic theories.
ヤタ, マサヤ   +2 more
core  

Superstrings in general backgrounds [PDF]

open access: yes, 2007
In the present thesis, some aspects of superstrings in general backgrounds are studied. The thesis divides into three parts. The first is devoted to a careful study of very convenient superspace conventions which are a basic tool for the second part.
Guttenberg, Sebastian
core  

Revisiting noninteracting string partition functions in Rindler space

open access: yes, 2016
We revisit noninteracting string partition functions in Rindler space by summing over fields in the spectrum. In field theory, the total partition function splits in a natural way into a piece that does not contain surface terms and a piece consisting of
Verschelde, Henri   +2 more
core   +1 more source

Explorations of four and five dimensional black hole spacetimes [PDF]

open access: yes, 2009
This thesis concentrates on four and five dimensional black holes and their associated geodesies. Some coordinate charts are presented, which are useful in the analysis of both static and rotating black holes, and their mathematical properties ...
Hoskisson, James
core  

Perturbative string thermodynamics near black hole horizons

open access: yes, 2015
We provide further computations and ideas to the problem of near-Hagedorn string thermodynamics near (uncharged) black hole horizons, building upon our earlier work JHEP 1403 (2014) 086. The relevance of long strings to one-loop black hole thermodynamics
Verschelde, Henri   +5 more
core   +1 more source

Upper bound on the Atiyah-Singer index from tadpole cancellation

open access: yesJournal of High Energy Physics
We propose an upper bound on the Atiyah-Singer index in the effective action of string theory. For E 8 × E 8 ′ $$ {E}_8^{\prime } $$ and SO(32) heterotic string theories on smooth Calabi-Yau threefolds with line bundles, we find that the tadpole ...
Keiya Ishiguro   +4 more
doaj   +1 more source

Recent developments in superstring theory. [PDF]

open access: yesProc Natl Acad Sci U S A, 1998
Schwarz JH.
europepmc   +1 more source

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