63 citations · 63 across the 1 of their papers we have counts for
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Entanglement detection by violations of noisy uncertainty relations: A proof of principle
Yuan-Yuan Zhao, Guo-Yong Xiang, Xiao-Min Hu +5
It is well-known that the violation of a local uncertainty relation can be used as an indicator for the presence of entanglement. Unfortunately, the practical use of these non-line…
Properties of the Wigner distribution for n arbitrary operators
René Schwonnek, Reinhard F. Werner
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 a…
Wigner distributions for n arbitrary observables
René Schwonnek, Reinhard F. Werner
We study a generalization of the Wigner function to arbitrary tuples of hermitian operators. We show that for any collection of hermitian operators A1...An , and any quantum state…
State-independent Uncertainty Relations and Entanglement Detection in Noisy Systems
René Schwonnek, Lars Dammeier, Reinhard F. Werner
Quantifying quantum mechanical uncertainty is vital for the increasing number of experiments that reach the uncertainty limited regime. We present a method for computing tight vari…
Measurement Uncertainty for Finite Quantum Observables
René Schwonnek, David Reeb, Reinhard F. Werner
Measurement uncertainty relations are lower bounds on the errors of any approximate joint measurement of two or more quantum observables. The aim of this paper is to provide method…