293 citations · 3.3k across the 79 of their papers we have counts for
6 papers · 2 filters
Noisy metrology beyond the standard quantum limit
R. Chaves, J. B. Brask, M. Markiewicz +2
Parameter estimation is of fundamental importance in areas from atomic spectroscopy and atomic clocks to gravitational wave detection. Entangled probes provide a significant precis…
Testing nonlocality of a single photon without a shared reference frame
Jonatan Bohr Brask, Rafael Chaves, Nicolas Brunner
The question of testing the nonlocality of a single photon has raised much debate over the last years. The controversy is intimately related to the issue of providing a common refe…
Local orthogonality as a multipartite principle for quantum correlations
T. Fritz, A. B. Sainz, R. Augusiak +4
In recent years, the use of information principles to understand quantum correlations has been very successful. Unfortunately, all principles considered so far have a bipartite for…
Multipartite quantum nonlocality under local decoherence
Rafael Chaves, Daniel Cavalcanti, Leandro Aolita +1
We study the nonlocal properties of two-qubit maximally-entangled and N-qubit Greenberger-Horne-Zeilinger states under local decoherence. We show that the (non)resilience of entang…
Robust nonlocality tests with displacement-based measurements
Jonatan Bohr Brask, Rafael Chaves
Lately, much interest has been directed towards designing setups that achieve decisive tests of local realism. Here we present Bell tests with measurements based on linear optical…
An entropic approach to local realism and noncontextuality
Rafael Chaves, Tobias Fritz
For any Bell locality scenario (or Kochen-Specker noncontextuality scenario), the joint Shannon entropies of local (or noncontextual) models define a convex cone for which the non-…