73 citations · 211 across the 11 of their papers we have counts for
3 papers · 1 filter
Optimality of entropic uncertainty relations
Kais Abdelkhalek, René Schwonnek, Hans Maassen +5
The entropic uncertainty relation proven by Maassen and Uffink for arbitrary pairs of two observables is known to be non-optimal. Here, we call an uncertainty relation optimal, if…
Entanglement Distillation using the Exchange Interaction
Adrian Auer, René Schwonnek, Christian Schoder +3
A key ingredient of quantum repeaters is entanglement distillation, i.e., the generation of high-fidelity entangled qubits from a larger set of pairs with lower fidelity. Here, we…
Uncertainty Relations for Angular Momentum
Lars Dammeier, René Schwonnek, Reinhard F. Werner
In this work we study various notions of uncertainty for angular momentum in the spin-s representation of SU(2). We characterize the "uncertainty regions'' given by all vectors, wh…