Certifying nonclassical behavior for negative Keldysh quasiprobabilities
PP Potts - Physical Review Letters, 2019 - APS
We introduce an experimental test for ruling out classical explanations for the statistics
obtained when measuring arbitrary observables at arbitrary times using individual detectors …
obtained when measuring arbitrary observables at arbitrary times using individual detectors …
Properties of the Wigner distribution for n arbitrary operators
R Schwonnek, RF Werner - arXiv preprint arXiv:1802.08343, 2018 - arxiv.org
We study a generalization of the Wigner function to arbitrary tuples of hermitian operators,
which is a distribution uniquely characterized by the property that the marginals for all linear …
which is a distribution uniquely characterized by the property that the marginals for all linear …
Twisted Fourier analysis and pseudo-probability distributions
SJ Park, C Beny, HH Lee - arXiv preprint arXiv:2004.13860, 2020 - arxiv.org
We use a noncommutative generalization of Fourier analysis to define a broad class of
pseudo-probability representations, which includes the known bosonic and discrete Wigner …
pseudo-probability representations, which includes the known bosonic and discrete Wigner …