314 citations · 3k across the 71 of their papers we have counts for
5 papers · 1 filter
Searching via walking: How to find a marked subgraph of a graph using quantum walks
Mark Hillery, Daniel Reitzner, Vladimir Buzek
We show how a quantum walk can be used to find a marked edge or a marked complete subgraph of a complete graph. We employ a version of a quantum walk, the scattering walk, which le…
Efficient compression of quantum information
Martin Plesch, Vladimir Buzek
We propose a scheme for an exact efficient transformation of a tensor product state of many identically prepared qubits into a state of a logarithmically small number of qubits. Us…
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…
Quantum Machines
Mark Hillery, Vladimir Buzek
We discuss quantum information processing machines. We start with single purpose machines that either redistribute quantum information or identify quantum states. We then move on t…
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…