4 papers · 1 filter
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…
The principle of majorization: application to random quantum circuits
Raul O. Vallejos, Fernando de Melo, Gabriel G. Carlo
We test the principle of majorization [J. I. Latorre and M. A. Martin-Delgado, Phys. Rev. A 66, 022305 (2002)] in random circuits. Three classes of circuits were considered: (i) un…
Entropic Uncertainty Relations and the Quantum-to-Classical transition
Isadora Veeren, Fernando de Melo
Our knowledge of quantum mechanics can satisfactorily describe simple, microscopic systems, but is yet to explain the macroscopic everyday phenomena we observe. Here we aim to shed…
Multiparticle quantum walk with a gas-like interaction
Pedro C. S. Costa, Fernando de Melo, Renato Portugal
We analyze the dynamics of multiparticle discrete-time quantum walk on the two-dimensional lattice, with an interaction inspired on a classical model for gas collision, called HPP…