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Title: Gauge theory of gravity with topological invariants
Researcher: Sengupta, Sandipan
Guide(s): Date, Ghanashyam
Keywords: Time gauge
Gauge Theory
Upload Date: 24-Sep-2012
University: Homi Bhabha National Institute
Completed Date: August, 2011
Abstract: In gravity theory in four dimensions, there are three possible topological terms which can be added to the Lagrangian density. These are the Nieh Yan, Pontryagin and Euler terms. Here we investigate the e_ect of these terms in the context of canonical SU(2) formulation of gravity. We set up a general SU(2) formulation for gravity including all three terms. The theory contains three topological parameters associated with the three terms. Finally, we study what could be a suitable quantum framework for gravity in which one of these parameters, namely the Barbero-Immirzi parameter, can be interpreted as a vacuum angle exactly like the theta parameter in gauge theories.
Pagination: 71p.
Appears in Departments:Department of Physical Sciences

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01_title.pdfAttached File375.55 kBAdobe PDFView/Open
02_declaration.pdf50.03 kBAdobe PDFView/Open
03_dedication.pdf19.23 kBAdobe PDFView/Open
04_acknowledgements.pdf51.09 kBAdobe PDFView/Open
05_contents.pdf60.99 kBAdobe PDFView/Open
06_list of publications.pdf49.04 kBAdobe PDFView/Open
07_chapter 1.pdf175.83 kBAdobe PDFView/Open
08_chapter 2.pdf273.34 kBAdobe PDFView/Open
09_chapter 3.pdf241.68 kBAdobe PDFView/Open
10_chapter 4.pdf219.96 kBAdobe PDFView/Open
11_chapter 5.pdf159.71 kBAdobe PDFView/Open
12_chapter 6.pdf258.21 kBAdobe PDFView/Open
13_chapter 7.pdf247.33 kBAdobe PDFView/Open
14_chapter 8.pdf76.12 kBAdobe PDFView/Open
15_bibliography.pdf70.58 kBAdobe PDFView/Open
16_abstract.pdf33.01 kBAdobe PDFView/Open
17_summary.pdf54.45 kBAdobe PDFView/Open

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