Extended bodies in general relativity: dynamics of an oscillating dumbbell

• Grant number: 18/05000-2
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: May 01, 2018
• End date: December 31, 2018
• Field of knowledge: Physical Sciences and Mathematics - Physics - General Physics
• Principal Investigator: Ricardo Antonio Mosna
• Grantee: Tales Rick Perche
• Host Institution: Instituto de Matemática, Estatística e Computação Científica (IMECC). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
• Associated research grant: 13/09357-9 - Physics and geometry of spacetime, AP.TEM

Abstract

The aim of this project is to study Dixon's approach to describe extended bodies in General Relativity. In particular, we will revisit the case of an oscillating dumbbell in the Schwarzschild spacetime, and compare the results to those obtained in the context of the relativistic glider, introduced by one of the authors in [E. Gueron, R. A. Mosna, Phys. Rev. D75, 081501 (2007)]. This will lead to a better understanding of this effect from a fundamental viewpoint, both by shedding light on its physical nature and by having better control on the relevant approximations.