Tidal effects in Schwarzschild black hole in holographic massive gravity

We investigate tidal effects produced in the spacetime of Schwarzschild black hole in holographic massive gravity, which has two additional mass parameters due to massive gravitons. As a result, we have obtained that massive gravitons affect the angular component of the tidal force, while the radial...

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Bibliographic Details
Published in:Physics letters. B 2020-12, Vol.811, p.135967, Article 135967
Main Authors: Hong, Soon-Tae, Kim, Yong-Wan, Park, Young-Jai
Format: Article
Language:English
Subjects:
Geodesic deviation equation
Schwarzschild black hole in holographic massive gravity
Tidal force
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Summary:We investigate tidal effects produced in the spacetime of Schwarzschild black hole in holographic massive gravity, which has two additional mass parameters due to massive gravitons. As a result, we have obtained that massive gravitons affect the angular component of the tidal force, while the radial component has the same form with the one in massless gravity. On the other hand, by solving the geodesic deviation equations, we have found that radial components of two nearby geodesics keep tightening while falling into the black hole and after passing the event horizons get abruptly infinitely stretched due to massive gravitons. However, angular components of two nearby geodesics get stretched firstly, reach a peak and then get compressed while falling into the black hole. Moreover, we have also shown that the angular components are more easily deformed near the departure position as the mass of a black hole is smaller for a fixed graviton mass.
ISSN:0370-2693
1873-2445
DOI:10.1016/j.physletb.2020.135967