5 citations · 8 across the 3 of their papers we have counts for
7 papers
Investigating Coarse-Grainings and Emergent Quantum Dynamics with Four Mathematical Perspectives
Cristhiano Duarte, Barbara Amaral, Marcelo Terra Cunha +1
With the birth of quantum information science, many tools have been developed to deal with many-body quantum systems. Although a complete description of such systems is desirable,…
Contextuality-by-default for behaviours in compatibility scenarios
Alisson Tezzin, Rafael Wagner, Barbara Amaral
We show that the main idea behind contextuality-by-default (CbD), i.e., the assumption that a physical measurement has to be understood as a contextual collection of random variabl…
Resource Theory of Contextuality
Barbara Amaral
In addition to the important role of contextuality in foundations of quantum theory, this intrinsically quantum property has been identified as a potential resource for quantum adv…
Graph Approach to Extended Contextuality
Barbara Amaral, Cristhiano Duarte
Exploring the graph approach, we restate the extended definition of noncontextuality provided by the contextuality-by-default framework. This extended definition avoids the assumpt…
Concentration phenomena in the geometry of Bell correlations
Cristhiano Duarte, Samuraí Brito, Barbara Amaral +1
Bell's theorem shows that local measurements on entangled states give rise to correlations incompatible with local hidden variable models. The degree of quantum nonlocality is not…
Roughness as Classicality Indicator of a Quantum State
Humberto C. F. Lemos, Alexandre C. L. Almeida, Barbara Amaral +1
We define a new quantifier of classicality for a quantum state, the Roughness, which is given by the distance between Wigner and Husimi functions. We show th…