77 citations · 264 across the 21 of their papers we have counts for
5 papers · 2 filters
Quantum Finite-Depth Memory Channels: Case Study
Mário Ziman, Tomáš Rybár
We analyze the depth of the memory of quantum memory channels generated by a fixed unitary transformation describing the interaction between the principal system and internal degre…
Unambiguous comparison of quantum measurements
Mario Ziman, Teiko Heinosaari, Michal Sedlak
The goal of comparison is to reveal the difference of compared objects as fast and reliably as possible. In this paper we formulate and investigate the unambiguous comparison of un…
Coexistence of quantum operations
Teiko Heinosaari, Daniel Reitzner, Peter Stano +1
Quantum operations are used to describe the observed probability distributions and conditional states of the measured system. In this paper, we address the problem of their joint m…
Scrutinizing single-qubit quantum channels: Theory and experiment with trapped ions
Thilo Hannemann, Christof Wunderlich, Martin Plesch +2
We report experimental implementation of various types of qubit channels using an individual trapped ion. We analyzed experimental data and we performed tomographic reconstruction…
Unambiguous identification of coherent states II: Multiple resources
Michal Sedlak, Mario Ziman, Vladimir Buzek +1
We consider unambiguous identification of coherent states of electromagnetic field. In particular, we study possible generalizations of an optical setup proposed in M. Sedlák {\it…