3.4k citations · 4.7k across the 9 of their papers we have counts for
8 papers
Quantum Parrondo's game with random strategies
J. Kosik, J. A. Miszczak, V. Buzek
We present a quantum implementation of Parrondo's game with randomly switched strategies using 1) a quantum walk as a source of ``randomness'' and 2) a completely positive (CP) map…
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…
The no-signaling condition and quantum dynamics
Christoph Simon, Vladimir Buzek, Nicolas Gisin
We show that the basic dynamical rules of quantum physics can be derived from its static properties and the condition that superluminal communication is forbidden. More precisely,…
Optimal Manipulations with Qubits: Universal NOT Gate
V. Buzek, M. Hillery, R. Werner
It is not a problem to complement a classical bit, i.e. to change the value of a bit, a 0 to a 1 and vice versa. This is accomplished by a NOT gate. Complementing a qubit in an unk…
Numerical simulations of fundamental processes in cavity QED: Atomic decay
V. Buzek, G. Drobny, Min Gyu Kim +2
We present results of numerical investigation of a microscopic dynamics of a two-level atom embedded into a ``linear crystal'' of other two-level atoms. These additional atoms play…
Quantum secret sharing
M. Hillery, V. Buzek, A. Berthiaume
Secret sharing is a procedure for splitting a message into several parts so that no subset of parts is sufficient to read the message, but the entire set is. We show how this proce…