69 citations · 168 across the 10 of their papers we have counts for
10 papers
Coherence as a resource for -box and quantum pigeonhole paradoxes
Som Kanjilal, Rafael Wagner, Ernesto F. Galvão
Pre- and post-selection (PPS) paradoxes are striking demonstrations of quantum nonclassicality. Logical PPS paradoxes, where inferences made with the Aharonov-Bergmann-Lebowitz (AB…
Non-stabilizerness and entanglement from cat-state injection
Filipa C. R. Peres, Rafael Wagner, Ernesto F. Galvão
Recently, cat states have been used to heuristically improve the runtime of a classical simulator of quantum circuits based on the diagrammatic ZX-calculus. Here we investigate the…
A simple proof that anomalous weak values require coherence
Rafael Wagner, Ernesto F. Galvão
The quantum mechanical weak value of an observable is a measurable quantity associated with an observabl…
Quantum circuits for measuring weak values, Kirkwood--Dirac quasiprobability distributions, and state spectra
Rafael Wagner, Zohar Schwartzman-Nowik, Ismael L. Paiva +5
Weak values and Kirkwood--Dirac (KD) quasiprobability distributions have been independently associated with both foundational issues in quantum theory and advantages in quantum met…
Coherence and contextuality in a Mach-Zehnder interferometer
Rafael Wagner, Anita Camillini, Ernesto F. Galvão
We analyse nonclassical resources in interference phenomena using generalized noncontextuality inequalities and basis-independent coherence witnesses. We use recently proposed ineq…
Inequalities witnessing coherence, nonlocality, and contextuality
Rafael Wagner, Rui Soares Barbosa, Ernesto F. Galvão
Quantum coherence, nonlocality, and contextuality are key resources for quantum advantage in metrology, communication, and computation. We introduce a graph-based approach to deriv…
Pseudogap Suppression by Competition with Superconductivity in La-Based Cuprates
J. Küspert, R. Cohn Wagner, C. Lin +23
We have carried out a comprehensive high-resolution angle-resolved photoemission spectroscopy (ARPES) study of the pseudogap interplay with superconductivity in La-based cuprates.…
Emergence of noncontextuality under quantum Darwinism
Roberto D. Baldijão, Rafael Wagner, Cristhiano Duarte +2
Quantum Darwinism proposes that the proliferation of redundant information plays a major role in the emergence of objectivity out of the quantum world. Is this kind of objectivity…
Using a resource theoretic perspective to witness and engineer quantum generalized contextuality for prepare-and-measure scenarios
Rafael Wagner, Roberto D. Baldijão, Alisson Tezzin +1
We employ the resource theory of generalized contextuality as a tool for analyzing the structure of prepare-and-measure scenarios. We argue that this framework simplifies proofs of…
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…