Titlebook: String Theory: From Gauge Interactions to Cosmology; Proceedings of the N Laurent Baulieu,Jan Boer,Eliezer Rabinovici Conference proceeding

Accrue

Closed Strings in Misner Space: A Toy Model for a Big Bounce?ure, we review the semi-classical propagation of closed strings in this background, with a particular emphasis on the twisted sectors of the orbifold. Tree-level scattering amplitudes and the one-loop vacuum amplitude are also discussed.

Enervate

Introduction to Cosmic F- and D-Stringsic strings arising as gauge theory solitons, and discuss in particular their network properties and the observational bounds that rule out cosmic strings as the principal origin of structure in our universe. I then consider cosmic superstrings, including the ‘fundamental’ F-strings and also D-string

微尘

Long Time Scales and Eternal Black Holesgins of the failure of the semiclassical gravity approximation to respect a unitarity-based bound suggested by Maldacena. We find that the presence of a subleading (in the large-. approximation involved) master field does restore the compliance with one bound but additional configurations are needed

似少年

Semiclassical Strings and AdS/CFTproach, in which similar 2d sigma model actions appear from the .. × .. string action and from the integrable spin chain Hamiltonian representing the N=4 super Yang-Mills dilatation operator. We consider mostly the leading-order terms in the energies/anomalous dimensions which match but comment also

爱管闲事

hazard

Chaotic Cascades for D-Branes on Sigularities are sometimes chaotic and exhibit duality walls. We construct supergravity solutions dual to logarithmic flows for these theories. We make new observations about a surface of conformal theories and more complicated supergravity solutions.

哀悼

anchor

集聚成团

Ganglion

Theory of Cosmological Perturbations and Applications to Superstring Cosmologyf the quantum theory of cosmological perturbations. I will illustrate the formalism with applications to inflationary cosmology. I will review the basics of inflationary cosmology and discuss why — through the evolution of fluctuations — inflation may provide a way of observationally testing Planck-scale physics.