7 papers
Examples of nonuniform limiting distributions for the quantum walk on even cycles
Malgorzata Bednarska, Andrzej Grudka, Pawel Kurzynski +2
In the note we show how the choice of the initial states can influence the evolution of time-averaged probability distribution of the quantum walk on even cycles.
Erasure versus teleportation scheme of optical CNOT gate
Antoni Wojcik, Andrzej Grudka
We clarify the connections between the erasure scheme of probabilistic CNOT gate implementation recently proposed by Pittman, Jacobs and Franson [Phys. Rev. A 64, 062311 (2001)] an…
Two-way teleportation
Andrzej Grudka, Ravindra W. Chhajlany
A protocol for teleporting two qudits simultaneously in opposite directions using a single pair of maximally entangled qudits is presented. This procedure works provided that the p…
Generation of inequivalent generalized Bell bases
A. Wojcik, A. Grudka, R. W. Chhajlany
The notion of equivalence of maximally entangled bases of bipartite d-dimensional Hilbert spaces is introduced. An explicit method of inequivalent bases construction is presented.
Quantum teleportation between multiparties
Andrzej Grudka
The paper presents general protocols for quantum teleportation between multiparties. It is shown how N parties can teleport N unknown quantum states to M other parties with the use…
Measurement of the overlap between quantum states with the use of coherently addressed teleportation
Andrzej Grudka, Antoni Wojcik
We will show how to measure the overlap between photon polarization states with the use of linear optics and postselection only. Our scheme is based on quantum teleportation and su…