Andreas Winter
4 papers in the PaperMetrix corpus
Papers by this author
-
Potential Capacities of Quantum Channels
2016 · IEEE Transactions on Information Theory
We introduce potential capacities of quantum channels in an operational way and provide upper bounds for these quantities, which quantify the ultimate limit of usefulness of a channel for a given task in the best …
-
An Alphabet-Size Bound for the Information Bottleneck Function
2020
The information bottleneck function gives a measure of optimal preservation of correlation between some random variable X and some side information Y while compressing X into a new random variable W with bounded remaining correlation …
-
Approximate Programmable Quantum Processors in Infinite Dimensions
2020 · arXiv (Cornell University)
A universal programmable quantum processor uses program quantum states to apply an arbitrary quantum channel to an input state. We generalize the concept of a finite-dimensional programmable quantum processor to infinite dimensions assuming an energy …
-
Decoupling by local random unitaries without simultaneous smoothing, and applications to multi-user quantum information tasks
2023 · arXiv (Cornell University)
We show that a simple telescoping sum trick, together with the triangle inequality and a tensorisation property of expected-contractive coefficients of random channels, allow us to achieve general simultaneous decoupling for multiple users via local …