Thiago Guerreiro


Thiago Guerreiro, an experimental physicist, completed his undergraduate studies at the Pontifical Catholic University of Rio de Janeiro and earned his doctorate from the University of Geneva in 2016. His research focuses on one of the most intriguing subjects in science: dark matter. Thiago advocates for simpler experimental approaches than the large-scale experiments typically associated with this field. Given his research’s complexity and speculative nature, Thiago ensures he takes time to relax and rejuvenate his mind. He enjoys playing guitar, exploring nature trails, and attending forró dances. To maintain his physical health, he incorporates running into his routine.


Table-top Fundamental Physics
Science / Physics

Astronomical observations have revealed that our most comprehensive theory of nature, the standard model of particle physics, is not all-encompassing. The existence of dark matter, which is necessary to explain large-scale structures in the universe, suggests the potential presence of new physical phenomena that can be virtually measured in small-scale experiments.

This paper outlines an experiment conducted at PUC-Rio to explore potential new interactions associated with dark matter, perhaps observable at micrometric scales. The experiment uses a force and displacement sensor that leverages the principles of quantum mechanics. The advancement of this technology not only facilitates the search for new physical phenomena but also inaugurates a novel field of research in Brazil—quantum opto-mechanics. This field holds diverse applications in metrology, quantum information, and materials science.

Amount invested

R$ 100,689.50
Podemos detectar a natureza quântica de campos gravitacionais?
Ciência / Física

A teoria da gravidade de Einstein admite uma descrição quântica efetiva em baixas energias, com predições que vão além da relatividade geral, uma teoria clássica. Conforme avançamos na era da astronomia de ondas gravitacionais, uma pergunta importante é se poderemos detectar efeitos não-clássicos associados a campos gravitacionais dinâmicos, provenientes da descrição quântica efetiva. Tais efeitos seriam análogos aos fenômenos quânticos em óptica que não podem ser descritos pela eletrodinâmica clássica. Desenvolveremos um programa de pesquisa para buscar tais efeitos experimentalmente, começando desde experimentos de prova de princípio em optomecânica e óptica quântica até propostas para futuras modificações de detectores de ondas gravitacionais.


  • Pontifícia Universidade Católica do Rio de Janeiro

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  • Topics
  • Astronomical observations
  • dark matter
  • materials science
  • Metrology
  • Particle physics
  • Quantum information
  • Quantum mechanics