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Observables and Dynamics in Quantum Gravity

 

Marketed By :  LAP LAMBERT Academic Publishing   Sold By :  Kamal Books International  
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  • Product Description
 

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.

Product Specifications
SKU :COC48705
AuthorPoya Haghnegahdar
LanguageEnglish
BindingPaperback
Number of Pages164
Publishing Year2010-09-14T00:00:00.000
ISBN978-3838327808
Edition1 st
Book TypePhysics
Country of ManufactureIndia
Product BrandLAP LAMBERT Academic Publishing
Product Packaging InfoBox
In The Box1 Piece
Product First Available On ClickOnCare.com2015-04-08 00:00:00