Comments on 'Casimir Effect in the Kerr spacetime with Quintessence'
| Autor: | Toshmatov, Bobir, Stuchlík, Zdeněk, Ahmedov, Bobomurat |
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| Rok vydání: | 2017 |
| Předmět: | |
| Zdroj: | Modern Physics Letters A 32 (2017) 1775001 |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1142/S0217732317750013 |
| Popis: | This comment is devoted to the recalculation of the Casimir energy of a massless scalar field in the Kerr black hole surrounded by quintessence derived in [B. Toshmatov, Z. Stuchl\'{i}k and B. Ahmedov, Eur. Phys. J. Plus {\bf 132}, 98 (2017)] and its comparison with the results recently obtained in [V. B. Bezerra, M. S. Cunha, L. F. F. Freitas and C. R. Muniz, Mod. Phys. Lett. A {\bf 32}, 1750005 (2017)] in the spacetime [S. G. Ghosh, Eur. Phys. J. C {\bf 76}, 222 (2016)]. We have shown that in the more realistic spacetime which does not have the failures illustrated here, the Casimir energy is significantly bigger than that derived in [V. B. Bezerra, M. S. Cunha, L. F. F. Freitas and C. R. Muniz, Mod. Phys. Lett. A {\bf 32}, 1750005 (2017)], and the difference becomes crucial especially in the regions of near horizons of the spacetime. Comment: 6 pages, 2 figures |
| Databáze: | arXiv |
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