| Grant number: | 17/26646-5 |
| Support Opportunities: | Scholarships abroad - Research Internship - Post-doctor |
| Start date: | May 01, 2018 |
| End date: | April 30, 2019 |
| Field of knowledge: | Physical Sciences and Mathematics - Physics - Elementary Particle Physics and Fields |
| Principal Investigator: | Tobias Frederico |
| Grantee: | Rafael Augusto Couceiro Correa |
| Supervisor: | Giuseppe Mussardo |
| Host Institution: | Divisão de Ciências Fundamentais (IEF). Instituto Tecnológico de Aeronáutica (ITA). Ministério da Defesa (Brasil). São José dos Campos , SP, Brazil |
| Institution abroad: | Scuola Internazionale Superiore di Studi Avanzati (SISSA), Italy |
| Associated to the scholarship: | 16/03276-5 - General theory of Oscillons in Lorentz violating scenarios, configurational entropy and physics of nanomaterials, BP.PD |
Abstract In this one year research stay in SISSA, my aim is to study configurations in classical field theory, which are time-dependent, localized in space and extremely long-lived called oscillons. I am interested in the study ofsystems in which there are one, two or more scalar fields with nonlinear interactions. I will study the fundamental properties of oscillons using nonperturbative analytical methods, obtaining for the first time a full analytical characterization of oscillons. Specifically, my research will focus on the dynamics of the oscillons by analytical methods capable to tackle the issues of stability, lifetime, decay rate, energy spectrum, frequency over the course of its life, amplitude, radius, and radiation rate. Using these analytical methods I will investigate how a gas of oscillons could be produced under the conditions present in the early Universe. I also intend to study oscillons in integrable classical field theories and apply them to investigate a primordial cosmological scenario, where a gas of interacting oscillons plays a major role. My supervisor in SISSA, Prof. Giuseppe Mussardo, is an expert in statistical mechanics and integrable field theories and I expect that with his collaboration I will be able to solve these fundamental problems. (AU) | |
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