Observables and Dynamics in Quantum Gravity: A Two Dimensional Discrete Theory - Couverture souple

Haghnegahdar, Poya

 
9783838327808: Observables and Dynamics in Quantum Gravity: A Two Dimensional Discrete Theory
Couverture souple
ISBN 10 : 3838327802 ISBN 13 : 9783838327808
Editeur : LAP Lambert Academic Publishing, 2009

Synopsis

Merging the concepts of quantum mechanics and those of general relativity presents us with one of the most interesting and fundamental contradictions in physics; how should we define time? In quantum mechanics time is a non-dynamical external parameter. In general relativity, time is one of the four dynamical variables of spacetime. How can we put these two different concepts together? What is the proper definition for a quantum relativistic time? This question has been occupying many theoretical physicist for the past eighty years, and despite many advances, and a number of possible candidates for a correct theory of quantum gravity, no unified answer has yet been reached. In this book, we explore this question in detail. We present two of the main candidates which attempt to address it, namely Loop Quantum Gravity and String Theory. We do this in the very simple yet effective context of a two dimensional spacetime or worldsheet. Through this work, the reader can become familiar with the elementary concepts of these theories of quantum gravity, and should see that despite their progress we are yet quite far from any satisfactory answer as to what time is.

Les informations fournies dans la section « Synopsis » peuvent faire référence à une autre édition de ce titre.

Éditeur
LAP Lambert Academic Publishing
Date d'édition
2009
Langue
anglais
ISBN 10 
3838327802
ISBN 13 
9783838327808
Reliure
Broché
Nombre de pages
164
Coordonnées du fabricant
non disponible
Personne responsable
KreGa Onlinehandel GmbH
4950000000000
info@krega-onlinehandel.de

Birkenweg 31
Brakel
33034
Allemagne