Acceleration and radiation: classical and quantum aspects

• Grant number: 19/09401-4
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: November 01, 2019
• End date: December 31, 2023
• Field of knowledge: Physical Sciences and Mathematics - Physics - Elementary Particle Physics and Fields
• Principal Investigator: Andre Gustavo Scagliusi Landulfo
• Grantee: Felipe Ignacio Portales Oliva
• Host Institution: Centro de Ciências Naturais e Humanas (CCNH). Universidade Federal do ABC (UFABC). Santo André , SP, Brazil
• Associated research grant: 13/09357-9 - Physics and geometry of spacetime, AP.TEM

Abstract

Ever since the works of Rohrlich and Boulware it was realized that radiation is not a covariant concept. They found that uniformly accelerated electric charges should not emit radiation with respect to co-accelerated observers. Since then, the connection between acceleration and radiation and their relation to the equivalence principle keeps puzzling the community. More recently, this issue was investigated quantum-mechanically in the framework of quantum field theory in curved spacetimes and it was found what appears to be a striking connection between the bremsstrahlung and the Unruh effect. In this context, {\em zero-energy} Rindler photons play a crucial role, which have kept some physicists unsettled and hesitant in accepting such connection. In this PhD project, we aim to study both classical and quantum aspects of the radiation emitted by an accelerated charge and the exact role played by zero-energy Rindler photons already at the classical realm. Building on that, we will go a step ahead and analyze the analogous problem of the gravitational radiation emitted by a uniformly accelerating mass and its relation with zero-energy (Rindler) particles and the Unruh effect. We end the project by studying the possibility of a more general definition of radiation (and under which conditions such a concept is valid). (AU)

Scientific publications

(The scientific publications listed on this page originate from the Web of Science or SciELO databases. Their authors have cited FAPESP grant or fellowship project numbers awarded to Principal Investigators or Fellowship Recipients, whether or not they are among the authors. This information is collected automatically and retrieved directly from those bibliometric databases.)

PORTALES-OLIVA, FELIPE; LANDULFO, ANDRE G. S.. Classical and quantum reconciliation of electromagnetic radiation: Vector Unruh modes and zero-Rindler-energy photons. PHYSICAL REVIEW D, v. 106, n. 6, p. 14-pg., 2022-09-06. (19/09401-4)

PORTALES-OLIVA, FELIPE; LANDULFO, ANDRE G. S.. Gravitational waves emitted by a uniformly accelerated mass: The role of zero-Rindler-energy modes in the classical and quantum descriptions. PHYSICAL REVIEW D, v. 109, n. 4, p. 20-pg., 2024-02-09. (19/09401-4)