18 citations · 21 across the 2 of their papers we have counts for
7 papers
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…
Towards optimization of quantum circuits
Michal Sedlak, Martin Plesch
Any unitary operation in quantum information processing can be implemented via a sequence of simpler steps - quantum gates. However, actual implementation of a quantum gate is alwa…
Process reconstruction: From unphysical to physical maps via maximum likelihood
Mario Ziman, Martin Plesch, Vladimir Buzek +1
We show that the method of maximum likelihood (MML) provides us with an efficient scheme for reconstruction of quantum channels from incomplete measurement data. By construction th…
Process reconstruction from incomplete and/or inconsistent data
Mario Ziman, Martin Plesch, Vladimir Buzek
We analyze how an action of a qubit channel (map) can be estimated from the measured data that are incomplete or even inconsistent. That is, we consider situations when measurement…
Controlling bi-partite entanglement in multi-qubit systems
Martin Plesch, Jaroslav Novotny, Zuzana Dzurakova +1
Bi-partite entanglement in multi-qubit systems cannot be shared freely. The rules of quantum mechanics impose bounds on how multi-qubit systems can be correlated. In this paper we…
Entangled graphs II: Classical correlations in multi-qubit entangled systems
Martin Plesch, Vladimir Buzek
Bipartite correlations in multi-qubit systems cannot be shared freely. The presence of entanglement or classical correlation on certain pairs of qubits may imply correlations on ot…