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  On Loop Quantum Gravity Phenomenology and the Issue of Lorentz Invariance

Bojowald, M., Morales-Tecotl, H. A., & Sahlmann, H. (2005). On Loop Quantum Gravity Phenomenology and the Issue of Lorentz Invariance. Physical Review D, 71: 084012. Retrieved from http://scitation.aip.org/getpdf/servlet/GetPDFServlet?filetype=pdf&id=PRVDAQ000071000008084012000001&idtype=cvips&prog=normal.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-0013-4E97-7 Version Permalink: https://hdl.handle.net/11858/00-001M-0000-0013-4E98-5
Genre: Journal Article

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0411101.pdf (Preprint), 174KB
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 Creators:
Bojowald, Martin1, Author
Morales-Tecotl, Hugo A., Author
Sahlmann, Hanno, Author
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1Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_24014              

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 Abstract: A simple model is constructed which allows to compute modified dispersion relations with effects from loop quantum gravity. Different quantization choices can be realized and their effects on the order of corrections studied explicitly. A comparison with more involved semiclassical techniques shows that there is agreement even at a quantitative level. Furthermore, by contrasting Hamiltonian and Lagrangian descriptions we show that possible Lorentz symmetry violations may be blurred as an artifact of the approximation scheme. Whether this is the case in a purely Hamiltonian analysis can be resolved by an improvement in the effective semiclassical analysis.

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Language(s): eng - English
 Dates: 2005
 Publication Status: Issued
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 Rev. Type: -
 Identifiers: eDoc: 205859
URI: http://scitation.aip.org/getpdf/servlet/GetPDFServlet?filetype=pdf&id=PRVDAQ000071000008084012000001&idtype=cvips&prog=normal
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Title: Physical Review D
Source Genre: Journal
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Pages: - Volume / Issue: 71 Sequence Number: 084012 Start / End Page: - Identifier: -