40 citations · 105 across the 4 of their papers we have counts for
5 papers
Nonclassicality of states and measurements by breaking classical bounds on statistics
Ángel Rivas, Alfredo Luis
We derive exceedingly simple practical procedures revealing the quantum nature of states and measurements by the violation of classical upper bounds on the statistics of arbitrary…
Practical schemes for the measurement of angular-momentum covariance matrices in quantum optics
Ángel Rivas, Alfredo Luis
We develop practical schemes for the measurement of the covariance matrix for intrinsic angular-momentum variables in quantum optics. We particularize this approach to two-beam pol…
Intrinsic metrological resolution as a distance measure and nonclassical light
Ángel Rivas, Alfredo Luis
We elaborate on a Hilbert-Schmidt distance measure assessing the intrinsic metrological accuracy in the detection of signals imprinted on quantum probe states by signal-dependent t…
Characterization of quantum angular-momentum fluctuations via principal components
Ángel Rivas, Alfredo Luis
We elaborate an approach to quantum fluctuations of angular momentum based on the diagonalization of the covariance matrix in two versions: real symmetric and complex Hermitian. At…
Nonclassicality in Weak Measurements
Lars M. Johansen, Alfredo Luis
We examine weak measurements of arbitrary observables where the object is prepared in a mixed state and on which measurements with imperfect detectors are made. The weak value of a…