Computational relativity: black holes, chaos, and structure formation
The functional renormalization group in quantum field theory in curved spacetimes
| Full text | |
| Author(s): |
Total Authors: 3
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| Affiliation: | [1] Univ Fed Rio Grande do Norte, Dept Fis Teor & Expt, Ave Senador Salgado Filho, BR-59078970 Natal, RN - Brazil
[2] Univ Geneva, Dept Phys Theor, CH-1211 Geneva - Switzerland
[3] Univ Geneva, Ctr Astroparticle Phys, CH-1211 Geneva - Switzerland
[4] Univ Fed Rio Grande do Norte, Int Inst Phys, Campus Univ, Lagoa Nova CP 1613, BR-59078970 Natal, RN - Brazil
Total Affiliations: 4
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| Document type: | Journal article |
| Source: | Physical Review D; v. 104, n. 8 OCT 27 2021. |
| Web of Science Citations: | 0 |
| Abstract | |
We study the effect of scattering gravitational radiation off the static background curvature, up to second order in Newton constant, known in the literature as tail and tail-of-tail processes, for generic electric and magnetic multipoles. Starting from the multipole expansion of composite compact objects, and as expected due to the known electric quadrupole case, both long- and short-distance (UV) divergences are encountered. The former disappear from properly defined observables, the latter are renormalized, and their associated logarithms give rise to a classical renormalization group flow. UV divergences alert for incompleteness of the multipolar description of the composite source and are expected not to be present in a UV-complete theory, as explicitly derived in the literature for the case of conservative dynamics. Logarithmic terms from tail-of-tail processes associated to generic magnetic multipoles are computed in this work for the first time. (AU) | |
| FAPESP's process: | 16/01343-7 - ICTP South American Institute for Fundamental Research: a regional center for theoretical physics |
| Grantee: | Nathan Jacob Berkovits |
| Support Opportunities: | Special Projects |