We examine quantum corrections of time delay arising in the gravitational field of a spinning oblate source. Low-energy quantum effects occurring in Kerr geometry are derived within a framework where general relativity is fully seen as an effective field theory. By employing such a pattern, gravitational radiative modifications of Kerr metric are derived from the energy-momentum tensor of the source, which at lowest order in the fields is modelled as a point mass. Therefore, in order to describe a quantum corrected version of time delay in the case in which the source body has a finite extension, we introduce a hybrid scheme where quantum fluctuations affect only the monopole term occurring in the multipole expansion of the Newtonian potential. The predicted quantum deviation from the corresponding classical value turns out to be too small to be detected in the next future, showing that new models should be examined in order to test low-energy quantum gravity within the solar system.
Quantum time delay in the gravitational field of a rotating mass / Emmanuele Battista, 1; Tartaglia, Angelo; Giampiero Esposito, †; David Lucchesi, ‡; Ruggiero, MATTEO LUCA; Pavol Valko, ¶; Simone Dell’Agnello, ∗∗; Luciano Di Fiore, ††; Jules Simo, ‡‡; Aniello, Grado. - In: CLASSICAL AND QUANTUM GRAVITY. - ISSN 0264-9381. - STAMPA. - 34:16(2017), pp. 1-12.
|Titolo:||Quantum time delay in the gravitational field of a rotating mass|
|Data di pubblicazione:||2017|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1088/1361-6382/aa7f11|
|Appare nelle tipologie:||1.1 Articolo in rivista|