1 citations · 1 across the 6 of their papers we have counts for
6 papers
Liénard--Wiechert potentials and the electromagnetic memory effect
Níckolas de Aguiar Alves, Bruno Arderucio Costa
Classical electrodynamics is one of the most well-tested and understood theories in physics. After more than a century of history, it may be surprising that such an established the…
The unexpected effectiveness of the Picard maneuver: Seeing three images of the same superluminal spaceship
Níckolas de Aguiar Alves
The USS Stargazer, commanded by Captain Jean-Luc Picard, battles a Ferengi vessel. In an effort to survive the battle, the Stargazer does the unthinkable: they move toward the Fere…
Sound as a gauge theory and its infrared triangle
Níckolas de Aguiar Alves, André G. S. Landulfo
Over the last few decades, a rich structure has been uncovered in the infrared sector of various field theories. This mostly comes through the connections between memory effects, a…
Lectures on the Bondi--Metzner--Sachs group and related topics in infrared physics
Níckolas de Aguiar Alves
These are the extended lecture notes for a minicourse presented at the I São Paulo School on Gravitational Physics discussing the Bondi--Metzner--Sachs (BMS) group, the group of sy…
Positive Mass in General Relativity Without Energy Conditions
Níckolas de Aguiar Alves, Andre G. S. Landulfo, Bruno Arderucio Costa
A long-standing problem in physics is why observed masses are always positive. While energy conditions in quantum field theory can partly answer this problem, in this paper we find…
Nonperturbative Aspects of Quantum Field Theory in Curved Spacetime
Níckolas de Aguiar Alves
Quantum field theory in curved spacetime is perhaps the most reliable framework in which one can investigate quantum effects in the presence of strong gravitational fields. Neverth…