33 citations · 45 across the 4 of their papers we have counts for
4 papers
Measurement-Disturbance Tradeoff Outperforming Optimal Cloning
Lukas Knips, Jan Dziewior, Anna-Lena K. Hashagen +3
One of the characteristic features of quantum mechanics is that every measurement that extracts information about a general quantum system necessarily causes an unavoidable disturb…
Approximate Randomized Benchmarking for Finite Groups
Daniel Stilck França, Anna-Lena Hashagen
We investigate randomized benchmarking in a general setting with quantum gates that form a representation, not necessarily an irreducible one, of a finite group. We derive an estim…
Universality and Optimality in the Information-Disturbance Tradeoff
Anna-Lena K. Hashagen, Michael M. Wolf
We investigate the tradeoff between the quality of an approximate version of a given measurement and the disturbance it induces in the measured quantum system. We prove that if the…
Universal Asymmetric Quantum Cloning Revisited
A. K. Hashagen
This paper revisits the universal asymmetric quantum cloning problem. We identify the symmetry properties of this optimisation problem, giving us access to the optimal qu…