241 citations · 410 across the 3 of their papers we have counts for
3 papers
Trapping a particle of a quantum walk on the line
Antoni Wojcik, Tomasz Luczak, Pawel Kurzynski +3
We observe that changing a phase at a single point in a discrete quantum walk results in a rather surprising localization effect. For certain values of this phase change the possib…
Multiuser quantum communication networks
A. Wojcik, T. Luczak, P. Kurzynski +3
We study a quantum state transfer between spins interacting with an arbitrary network of spins coupled by uniform XX interactions. It is shown that in such a system under fairly ge…
Unmodulated spin chains as universal quantum wires
Antoni Wojcik, Tomasz Luczak, Pawel Kurzynski +3
We study a quantum state transfer between two qubits interacting with the ends of a quantum wire consisting of linearly arranged spins coupled by an excitation conserving, time-ind…