33 citations · 123 across the 15 of their papers we have counts for
15 papers
Boosting State Discrimination in Quantum Brownian Motion Channel via Memory-Induced Coherence Preservation
João C. P. Porto, Pedro R. Dieguez, Carlos H. S. Vieira +3
Preserving quantum resources in dissipative environments is a fundamental challenge in quantum information processing. While environmental interactions usually degrade quantum reso…
Weak-to-Strong Measurement Transition with Thermal Instabilities: From Anomalous Amplification to Metrological Sensitivity
Marcos V. S. Lima, Carlos H. S. Vieira, Irismar G. da Paz +2
Quantum measurement is physically realized through a finite dynamical interaction between a system and a measuring apparatus, giving rise to a continuous transition from weak to st…
Multiparameter estimation with position-momentum correlated Gaussian probes
João C. P. Porto, Carlos H. S. Vieira, Pedro R. Dieguez +2
Gaussian quantum probes have been widely used in quantum metrology and thermometry, where the goal is to estimate the temperature of an environment with which the probe interacts.…
Enhancing Gaussian quantum metrology with position-momentum correlations
João C. P. Porto, Lucas S. Marinho, Pedro R. Dieguez +2
Quantum metrology offers significant improvements in several quantum technologies. In this work, we propose a Gaussian quantum metrology protocol assisted by initial position-momen…
The role of position momentum correlations in coherence freezing and purity behavior
Pedro P. da Silva, Carlos H. S. Vieira, Jonas F. G. Santos +3
We explore the effects of Markovian bath coupling and initial position-momentum correlations on the coherence and purity of Gaussian quantum states. Our analysis focuses on the rol…
Gouy phase and quantum interference with cross-Wigner functions for matter-waves
Lucas S. Marinho, Pedro R. Dieguez, Carlos H. S. Vieira +1
The Gouy phase is essential for accurately describing various wave phenomena, ranging from classical electromagnetic waves to matter waves and quantum optics. In this work, we empl…
Coherence behavior of strongly coupled bosonic modes
Jucelino F. Sousa, Carlos H. S. Vieira, Jonas F. G. Santos +1
We study the effect of the intermode coupling in the generation of coherence when two bosonic modes are bilinearly coupled. We consider the case for which the two modes are weakly…
Biphoton phase-space correlations from Gouy-phase measurements using double slits
F. C. V. de Brito, I. G. da Paz, J. B. Araujo +1
Quantum correlations encoded in photonic Laguerre-Gaussian modes were shown to be related to the Gouy phase shifts (D. Kawase et al., Phys. Rev. Lett. 101, 050501 (2008)) allowing…
Irrealism from fringe visibility in matter-wave double-slit interference with initial contractive states
F. R. Lustosa, P. R. Dieguez, I. G. da Paz
The elements of reality coined by Einstein, Podoslky, and Rosen promoted a series of fundamental discussions involving the notion of quantum correlations and physical realism. The…
Gouy phase in non-classical paths in triple-slit interference experiment
Irismar da Paz, Carlos Vieira, Robert Ducharme +3
We propose a simple model to study the Gouy phase effect in the triple-slit experiment in which we consider a non-classical path. The Gouy phase differs for classical or non-classi…
Gouy Phase for Relativistic Quantum Particles
Robert J. Ducharme, Irismar Gonçalves da Paz
Recently Gouy rotation was observed with focused non-relativistic electron vortex beams. If the electrons in vortex beams are very fast we have to take into account relativistic ef…
Atomic Focusing by Quantum Fields: Entanglement Properties
I. G. da Paz, H. M. Frazão, M. C. Nemes +1
The coherent manipulation of the atomic matter waves is of great interest both in science and technology. In order to study how an atom optic device alters the coherence of an atom…
Position-momentum correlations in matter waves double-slit experiment
J. S. M. Neto, I. G. da Paz, L. A. Cabral
We present a treatment of the double-slit interference of matter-waves represented by Gaussian wavepackets. The interference pattern is modelled with Green's function propagator wh…
Experimental proposal for measuring the Gouy phase of matter waves
I. G. da Paz, P. L. Saldanha, M. C. Nemes +1
The Schrödinger equation for an atomic beam predicts that it must have a phase anomaly near the beam waist analogous to the Gouy phase of an electromagnetic beam. We propose here a…
Indirect evidence for the Gouy phase for matter waves
I. G. da Paz, M. C. Nemes, C. H. Monken +2
We show that the well known geometric phase, the Gouy phase in optics can be defined for matter waves in vacuum as well. In particular we show that the underlying physics for the "…