3 papers
hep-th2025
Higher Derivative Sigma Models
John F. Donoghue, Gabriel Menezes
We explore the nature of running couplings in the higher derivative linear and nonlinear sigma models and show that the results in dimensional regularization for the physical runni…
hep-th2025
A dynamic theory of entanglement for uniformly accelerated atoms
M. S. Soares, N. F. Svaiter, G. Menezes
We study the entanglement dynamics of accelerated atoms using the theory of open quantum systems. We consider two atoms travelling along different hyperbolic trajectories with diff…
gr-qc2025
Gravitational Polarizability of Schwarzschild Black Holes
Gabriel Vidal, Gabriel M. Dantas, Riccardo Sturani +1
The linear response of a Schwarzschild black hole to an external quadrupolar perturbation is studied in analogy to a mechanical electrodynamical system, with the goal to describe t…