Quantum gravity at energies below the Planck scale

• Grant number: 22/08424-3
• Support Opportunities: Scholarships in Brazil - Doctorate (Direct)
• Start date: September 01, 2022
• End date: August 31, 2026
• Field of knowledge: Physical Sciences and Mathematics - Physics - General Physics
• Principal Investigator: George Emanuel Avraam Matsas
• Grantee: Gabriel Henrique Sarmento Aguiar
• Host Institution: Instituto de Física Teórica (IFT). Universidade Estadual Paulista (UNESP). Campus de São Paulo. São Paulo , SP, Brazil

Abstract

The grand goal behind this project is to proceed a step forward concerning Quantum Field Theory in Curved Spacetimes (QFTCS). QFTCS formalism provides quite reliable results provided we stay below the Planck scale and is used in a predetermined background spacetime. Yet, the backreaction of the quantum fields on the spacetime itself is much more difficult to assess. We aim to look for insights into how matter and spacetime can be harmonically evolved as ruled by quantum mechanics at low energies. Although we believe this is interesting in its own right, recent developments suggest insights into quantum gravity can spin-off from this kind of analysis. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

DA SILVA, JOAO V. B.; AGUIAR, GABRIEL H. S.; MATSAS, GEORGE E. A.. Disfavoring the Schrodinger-Newton equation in explaining the emergence of classicality. PHYSICAL REVIEW A, v. 108, n. 1, p. 6-pg., 2023-07-24. (22/10561-9, 22/08424-3)

AGUIAR, GABRIEL H. S.; MATSAS, GEORGE E. A.. Probing the Schrödinger-Newton equation in a Stern-Gerlach-like experiment. PHYSICAL REVIEW A, v. 109, n. 3, p. 6-pg., 2024-03-25. (22/08424-3, 22/10561-9)