13 citations · 41 across the 12 of their papers we have counts for
12 papers
Equilibration of generalized subsystems: a quantum-channel approach
Pedro S. Correia, Adalberto D. Varizi, Gabriel Dias Carvalho
Quantum systems governed by unitary and reversible microscopic dynamics may nevertheless exhibit equilibration, in the sense that some effective description becomes time-independen…
When Isolated Quantum Systems Appear Classical
Thiago R. de Oliveira, Pedro S. Correia, Tiago Debarba +3
The emergence of classical behavior and the origin of thermal equilibrium are two central problems in the foundations of physics. In the standard accounts, both phenomena are typic…
Equilibration and the eigenstate thermalization hypothesis as limits to observing macroscopic quantum superpositions
Gabriel Dias Carvalho, Pedro S. Correia, Thiago R. de Oliveira
Macroscopic quantum superpositions are widely believed to be unobservable because large systems cannot be perfectly isolated from their environments. Here, we show that even under…
Necessity of entanglement for the typicality argument in statistical mechanics
Pedro S. Correia, Gabriel Dias Carvalho, Thiago R. de Oliveira
Typicality arguments replace the postulated mixed state ensembles of statistical mechanics with pure states sampled uniformly at random, explaining why most microstates of large sy…
A finite-resources description of a measurement process and its implications for the "Wigner's Friend" scenario
Fernando de Melo, Gabriel Dias Carvalho, Pedro S. Correia +3
Quantum mechanics started out as a theory to describe the smallest scales of energy in Nature. After a hundred years of development it is now routinely employed to describe, among…
Entropy Production from Maximum Entropy Principle: a Unifying Approach
Adalberto D. Varizi, Pedro S. Correia
Entropy production is the crucial quantity characterizing irreversible phenomena and the second law of thermodynamics. Yet, a ubiquitous definition eludes consensus. Given that ent…
Canonical typicality under general quantum channels
Pedro S. Correia, Gabriel Dias Carvalho, Thiago R. de Oliveira +2
With the control of ever more complex quantum systems becoming a reality, new scenarios are emerging where generalizations of the most foundational aspects of statistical quantum m…
Equilibration of Isolated Systems: investigating the role of coarse-graining on the initial state magnetization
Gabriel Dias Carvalho, Luis Fernando dos Prazeres, Pedro Silva Correia +1
Many theoretical and experimental results show that even isolated quantum systems evolving unitarily may equilibrate, since the evolution of some observables may be around an equil…
Quantum state inference from coarse-grained descriptions: analysis and an application to quantum thermodynamics
Raúl O. Vallejos, Pedro Silva Correia, Paola Concha Obando +3
The characterization of physical systems relies on the observable properties which are measured, and how such measurements are performed. Here we analyze two ways of assigning a de…
Decay of quantumness in a measurement process: Action of a coarse-graining channel
Gabriel Dias Carvalho, Pedro Silva Correia
A model of a quantum measurement process is presented: a system consisting of a qubit in a superposition interacts with a measuring apparatus consisting of a N qubit state. Looking…
Macro-to-micro quantum mapping and the emergence of nonlinearity
Pedro Silva Correia, Paola Concha Obando, Raúl O. Vallejos +1
As a universal theory of physics, quantum mechanics must assign states to every level of description of a system -- from a full microscopic description, all the way up to an effect…
Spin-entanglement wave in a coarse-grained optical lattice
Pedro Silva Correia, Fernando de Melo
In the present work we explore a suitable coarse graining channel as a tool to describe the effective entanglement spreading in a coarse-grained spin-chain with different degrees o…