104 citations · 173 across the 5 of their papers we have counts for
5 papers
Incompatibility of unbiased qubit observables and Pauli channels
T. Heinosaari, D. Reitzner, T. Rybár +1
A quantum observable and a channel are considered compatible if they form parts of the same measurement device, otherwise they are incompatible. Constrains on compatibility between…
Process estimation in presence of time-invariant memory effects
Tomas Rybar, Mario Ziman
Any repeated use of a fixed experimental instrument is subject to memory effects. We design an estimation method uncovering the details of the underlying interaction between the sy…
Simulation of indivisible qubit channels in collision models
Tomas Rybar, Sergey N. Filippov, Mario Ziman +1
A sequence of controlled collisions between a quantum system and its environment (composed of a set of quantum objects) naturally simulates (with arbitrary precision) any Markovian…
Local two-qubit entanglement-annihilating channels
Sergey N. Filippov, Tomas Rybar, Mario Ziman
We address the problem of the robustness of entanglement of bipartite systems (qubits) interacting with dynamically independent environments. In particular, we focus on characteriz…
Repeatable quantum memory channels
Tomas Rybar, Mário Ziman
Within the framework of quantum memory channels we introduce the notion of repeatability of quantum channels. In particular, a quantum channel is called repeatable if there exist a…