645 citations · 3.6k across the 104 of their papers we have counts for
8 papers · 2 filters
The macroscopic qubit delusion
Robert Alicki
There exists a large number of experimental and theoretical results supporting the picture of "macroscopic qubits" implemented, for instance, by Rydberg atoms, Josephson junctions…
On thermal stability of topological qubit in Kitaev's 4D model
R. Alicki, M. Horodecki, P. Horodecki +1
We analyse stability of the four-dimensional Kitaev model - a candidate for scalable quantum memory - in finite temperature within the weak coupling Markovian limit. It is shown th…
On von Neumann and Bell theorems applied to quantumness tests
Robert Alicki
The issues, raised in arXiv:0809.011, concerning the relevance of the von Neumann theorem for the single-system's quantumness test proposed in arXiv:0704.1962 and performed for the…
On thermalization in Kitaev's 2D model
R. Alicki, M. Fannes, M. Horodecki
The thermalization process of the 2D Kitaev model is studied within the Markovian weak coupling approximation. It is shown that its largest relaxation time is bounded from above by…
Decay of fidelity in terms of correlation functions
Robert Alicki, Mark Fannes
We consider, within the algebraic formalism, the time dependence of fidelity for qubits encoded into an open physical system. We relate the decay of fidelity to the evolution of co…
Quantumness Witnesses
Robert Alicki, Marco Piani, Nicholas Van Ryn
A recently proposed test of quantumness [R. Alicki and N. Van Ryn, J. Phys. A: Math. Theor. 41 062001 (2008)] is put into a broader mathematical and physical perspective. The notio…