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  Planck-scale dual-curvature lensing and spacetime noncommutativity

Amelino-Camelia, G., Barcaroli, L., Bianco, S., & Pensato, L. (2017). Planck-scale dual-curvature lensing and spacetime noncommutativity. Advances in High Energy Physics, 2017: 6075920. doi:10.1155/2017/6075920.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002D-DB2C-3 Version Permalink: http://hdl.handle.net/21.11116/0000-0002-E7D5-9
Genre: Journal Article

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 Creators:
Amelino-Camelia, Giovanni, Author
Barcaroli, Leonardo, Author
Bianco, Stefano1, Author
Pensato, Laura, Author
Affiliations:
1AEI-Golm, MPI for Gravitational Physics, Max Planck Society, Golm, DE, ou_24008              

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Free keywords: General Relativity and Quantum Cosmology, gr-qc
 Abstract: It was recently realized that Planck-scale momentum-space curvature, which is expected in some approaches to the quantum-gravity problem, can produce dual-curvature lensing, a feature which mainly affects the direction of observation of particles emitted by very distant sources. Several gray areas remain in our understanding of dual-curvature lensing, including the possibility that it might be just a coordinate artifact and the possibility that it might be in some sense a by product of the better studied dual-curvature redshift. We stress that data reported by the IceCube neutrino telescope should motivate a more vigorous effort of investigation of dual-curvature lensing, and we observe that studies of the recently proposed "$\rho$-Minkowski noncommutative spacetime" could be valuable from this perspective. Through a dedicated $\rho$-Minkowski analysis, we show that dual-curvature lensing is not merely a coordinate artifact and that it can be present even in theories without dual-curvature redshift.

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 Dates: 2017-08-082017
 Publication Status: Published in print
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 Identifiers: arXiv: 1708.02429
URI: http://arxiv.org/abs/1708.02429
DOI: 10.1155/2017/6075920
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Title: Advances in High Energy Physics
Source Genre: Journal
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Pages: - Volume / Issue: 2017 Sequence Number: 6075920 Start / End Page: - Identifier: -