Sökning: "Stephen Hwang"

Hittade 3 avhandlingar innehållade orden Stephen Hwang.

1. 1. Stretched Membranes

   Författare :Jonas Björnsson; Stephen Hwang; Jürgen Fuchs; Anders Westerberg; Ulf Lindström; Karlstads universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Physics; Fysik; Physics; Fysik;

   Sammanfattning : This thesis deals with relativistic membranes and, in particular, a limit called stretched membranes. The thesis also considers the relation of membranes to the conjectured M-theory and string theory. The thesis is divided into two parts. One introductory part where I introduce areas which are of relevance for the second part. LÄS MER

3. 2. Strings, Branes and Non-trivial Space-times

   Författare :Jonas Björnsson; Stephen Hwang; Ioannis Bakas; Karlstads universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; String theory; Membranes; BRST; p -branes; p -branes; Non-compact backgrounds; WZNW-model; No-ghost theorem; Unitarity; Hermitian symmetric spaces; CFT; Physics; Fysik; Physics; Fysik;

   Sammanfattning : This thesis deals with different aspects of string and /p/-brane theories. One of the motivations for string theory is to unify the forces in nature and produce a quantum theory of gravity. /p/-branes and related objects arise in string theory and are related to a non-perturbative definition of the theory. LÄS MER

4. 3. Aspects of conformal strings

   Författare :Panagiotis Saltsidis; Stephen Hwang; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Physics; Fysik; Physics; fysik;

   Sammanfattning : String theory is the quantum theory in which the fundamental constituents are one-dimensional extended objects in contrast to the usual quantum theories in which the fundamental constituents are point particles. At present we know of only one way to spread out the gravitational interaction and cut off its divergencies without spoiling the consistency of the theory; string theory. LÄS MER