Florian Fröwis

Uncertainty relations with variances and the quantum Fisher information based on convex decompositions of density matrices

2021 · arXiv (Cornell University)

We discuss recent findings relating the quantum Fisher information to convex roofs of variances. We present several improvements on the Robertson-Schrodinger uncertainty relation. In all these improvements, we consider a decomposition of the density matrix …

Implementation of quantum key distribution in an energy control system environment

2025 · IET conference proceedings.

The availability of quantum computers will make asymmetric cryptographic algorithms vulnerable to hacking attempts. Quantum Key Distribution (QKD) is one method to distribute keys safely and therewith enable a symmetric quantum safe encryption. The energy …