4 papers · 1 filter
Coherence and contextuality as quantum resources
Rafael Wagner
In this thesis, we explore the intersection of two fundamental subfields of quantum information theory: quantum coherence and contextuality. Despite their apparent differences, bot…
A structure theorem for complex-valued quasiprobability representations of physical theories
Rafael Wagner, Roberto D. Baldijão, Matthias Salzger +3
Quasiprobability representations are well-established tools in quantum information science, with applications ranging from the classical simulability of quantum computation to quan…
Multi-state imaginarity and coherence in qubit systems
Mao-Sheng Li, Rafael Wagner, Lin Zhang
Traditionally, the characterization of quantum resources has focused on individual quantum states. Recent literature, however, has increasingly explored the characterization of res…
Connecting extended Wigner's friend arguments and noncontextuality
Laurens Walleghem, Yìlè Yīng, Rafael Wagner +1
The Local Friendliness argument is an extended Wigner's friend no-go theorem that provides strong constraints on the nature of reality -- stronger even than those imposed by Bell's…