| Grant number: | 15/26438-8 |
| Support type: | Scholarships in Brazil - Doctorate |
| Effective date (Start): | June 01, 2016 |
| Effective date (End): | February 29, 2020 |
| Field of knowledge: | Physical Sciences and Mathematics - Physics |
| Principal Investigator: | Daniel Augusto Turolla Vanzella |
| Grantee: | Caio Cesar Holanda Ribeiro |
| Home Institution: | Instituto de Física de São Carlos (IFSC). Universidade de São Paulo (USP). São Carlos , SP, Brazil |
Abstract The "vacuum awakening" effect has been extensively studied in the context of scalar fields. In particular, its connection with spontaneous scalarization has been established in the astrophysical scenario of compact objects, showing that vacuum fluctuations of a quantized scalar field seed, after decoherence, classical perturbations which then evolve to the scalarized configuration. This project aims at analyzing the occurrence of this sort of instability but now for fields associated to particles with spin, like the Dirac and Weyl fields (spin 1/2), the Maxwell and Proca fields (spin 1), and the graviton field (spin 2). This analysis is not only natural to complement previous results but it is also necessary in order to properly evaluate the extent of the implications of these instabilities in realistic scenarios. (AU) | |