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http://hdl.handle.net/20.500.12386/23565
Title: | The matter-antimatter interpretation of Kerr spacetime | Authors: | VILLATA, Massimo | Issue Date: | 2015 | Journal: | ANNALEN DER PHYSIK | Number: | 527 | Issue: | 7-8 | First Page: | 507 | Abstract: | Repulsive gravity is not very popular in physics. However, one comes across it in at least two main occurrences in general relativity: in the negative-$r$ region of Kerr spacetime, and as the result of the gravitational interaction between matter and antimatter, when the latter is assumed to be CPT-transformed matter. Here we show how these two independent developments of general relativity are perfectly consistent in predicting gravitational repulsion and how the above Kerr negative-$r$ region can be interpreted as the habitat of antimatter. As a consequence, matter particles traveling along vortical geodesics can pass through the throat of a rotating black hole and emerge as antimatter particles (and vice versa). An experimental definitive answer on the gravitational behavior of antimatter is awaited in the next few years. | Note: | https://www.media.inaf.it/2015/06/14/gravita-solo-attrattiva-non-e-detto/ | URI: | http://hdl.handle.net/20.500.12386/23565 | URL: | http://arxiv.org/abs/1403.4820v3 https://onlinelibrary.wiley.com/doi/pdf/10.1002/andp.201500154 |
ISSN: | 0003-3804 | DOI: | 10.1002/andp.201500154 | Bibcode ADS: | 2015AnP...527..507V | Fulltext: | open |
Appears in Collections: | 1.01 Articoli in rivista |
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1403.4820.pdf | preprint | 340.44 kB | Adobe PDF | View/Open |
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