110 citations · 530 across the 28 of their papers we have counts for
28 papers
Nonperturbative Danielson-Satishchandran-Wald Decoherence with Unruh-DeWitt detectors
Levy B. N. Batista, André G. S. Landulfo, Robert B. Mann +1
Recently, Danielson, Satishchandran, and Wald (DSW) have proposed a novel source of decoherence for uniformly accelerated charges and masses in spatial superposition in spacetimes…
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…
A spacetime-covariant approach to inertial and accelerated quantum clocks in first-quantization
Eduardo A. B. Oliveira, Andre G. S. Landulfo
It is expected that a quantum theory of gravity will radically alter our current notion of spacetime geometry. However, contrary to what was commonly assumed for many decades, quan…
Null infinity as a Killing horizon
Níckolas de Aguiar Alves, Andre G. S. Landulfo
Symmetries are ubiquitous in modern physics. They not only allow for a more simplified description of physical systems but also, from a more fundamental perspective, can be seen as…
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…
Globally hyperbolic evaporating black hole and the information loss issue
Juan V. O. Pêgas, André G. S. Landulfo, George E. A. Matsas +1
We discuss the information loss issue for completely evaporating black holes in the context of a globally hyperbolic spacetime that maintains unchanged the entire semiclassical pic…
Gravitational Waves Emitted by a Uniformly Accelerated Mass: The Role of Zero-Rindler-Energy Modes in the Classical and Quantum Descriptions
Felipe Portales-Oliva, André G. S. Landulfo
The observation of gravitational waves opens up a new window to probe the universe and the nature of the gravitational field itself. As a result, they serve as a new and promising…
A relativistic quantum broadcast channel
Ian Bernardes Barcellos, André G. S. Landulfo
We investigate the transmission of classical and quantum information between three observers in a general globally hyperbolic spacetime using a quantum scalar field as a communicat…
Classical and quantum reconciliation of electromagnetic radiation: vector Unruh modes and zero-Rindler-energy photons
Felipe Portales-Oliva, André G. S. Landulfo
A great deal of evidence has been mounting over the years showing a deep connection between acceleration, radiation, and the Unruh effect. Indeed, the fact that the Unruh effect ca…
Relativistic Quantum Communication: Energy cost and channel capacities
Ian Bernardes Barcellos, Andre G. S. Landulfo
We consider the communication of classical and quantum information between two arbitrary observers in asymptotically flat spacetimes (possibly containing black holes) and investiga…
Uniformly accelerated classical sources as limits of Unruh-DeWitt detectors
Gabriel Cozzella, Stephen A. Fulling, André G. S. Landulfo +1
Although the thermal and radiative effects associated with a two-level quantum system undergoing acceleration are now widely understood and accepted, a surprising amount of controv…
Neutrino flavor oscillations without flavor states
Bruno de S. L. Torres, T. Rick Perche, André G. S. Landulfo +1
We analyze the problem of neutrino oscillations via a fermionic particle detector model inspired by the physics of the Fermi theory of weak interactions. The model naturally leads…
Exact Renormalization Group, Entanglement Entropy, and Black Hole Entropy
Joao Lucas Miqueleto, Andre G. S. Landulfo
The study of black hole physics revealed a fundamental connection between thermodynamics, quantum mechanics, and gravity. Today, it is known that black holes are thermodynamical ob…
Traces of the Unruh effect in surface waves
Guilherme B. Barros, Joao P. C. R. Rodrigues, Andre G. S. Landulfo +1
We look for classical traces of the Unruh effect in gravity waves. For this purpose, we start considering a white noise state of gravity waves on the surface of a water basin and c…
Observer dependence of entanglement in "nonrelativistic" quantum mechanics
Matheus H. Zambianco, Andre G. S. Landulfo, George E. A. Matsas
It was recently shown that, in general, the von Neumann spin entropy of fermionic particles is not invariant under Lorentz boosts. We show that an analogous result can be recovered…
Classical and quantum aspects of the radiation emitted by a uniformly accelerated charge: Larmor--Unruh reconciliation and zero-frequency Rindler modes
Andre G. S. Landulfo, Stephen A. Fulling, George E. A. Matsas
The interplay between acceleration and radiation harbors remarkable and surprising consequences. One of the most striking is that the Larmor radiation emitted by a charge can be se…
Relativistic spring-mass system
Rodrigo Andrade e Silva, Andre G. S. Landulfo, George E. A. Matsas +1
The harmonic oscillator plays a central role in physics describing the dynamics of a wide range of systems close to stable equilibrium points. The nonrelativistic one-dimensional s…
The Unruh effect for mixing neutrinos
Gabriel Cozzella, Stephen A. Fulling, Andre G. S. Landulfo +2
Recently, the inverse -decay rate calculated with respect to uniformly accelerated observers (experiencing the Unruh thermal bath) was revisited. Concerns have been raised regar…
Quest for a 'direct' observation of the Unruh effect with classical electrodynamics: In honor of Atsushi Higuchi 60th anniversary
Gabriel Cozzella, Andre G. S. Landulfo, George E. A. Matsas +1
The Unruh effect is essential to keep the consistency of quantum field theory in inertial and uniformly accelerated frames. Thus, the Unruh effect must be considered as well tested…
Proposal for observing the Unruh effect with classical electrodynamics
Gabriel Cozzella, Andre G. S. Landulfo, George E. A. Matsas +1
The Unruh effect -- according to which linearly accelerated observers with proper acceleration a= constant in the (no-particle) vacuum state of inertial observers experience a ther…
Nonperturbative approach to relativistic quantum communication channels
Andre G. S. Landulfo
We investigate the transmission of both classical and quantum information between two arbitrary observers in globally hyperbolic spacetimes using a quantum field as a communication…
Instability of nonminimally coupled scalar fields in the spacetime of thin charged shells
Jessica Santiago, Andre G. S. Landulfo, William C. C. Lima +3
We investigate the stability of a free scalar field nonminimally coupled to gravity under linear perturbations in the spacetime of a charged spherical shell. Our analysis is perfor…
From quantum to classical instability in relativistic stars
André G. S. Landulfo, William C. C. Lima, George E. A. Matsas +1
It has been shown that gravitational fields produced by realistic classical-matter distributions can force quantum vacuum fluctuations of some nonminimally coupled free scalar fiel…
Sending classical information through relativistic quantum channels
Andre G. S. Landulfo, Adriano C. Torres
We investigate how special relativity influences the transmission of classical information through quantum channels by evaluating the Holevo bound when the sender and the receiver…