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9 papers · 2 filters
Stationary two-atom entanglement induced by nonclassical two-photon correlations
R. Tanas, Z. Ficek
A system of two two-level atoms interacting with a squeezed vacuum field can exhibit stationary entanglement associated with nonclassical two-photon correlations characteristic of…
Entangling two atoms via spontaneous emission
R Tanas, Z. Ficek
We discuss the creation of entanglement between two two-level atoms in the dissipative process of spontaneous emission. It is shown that spontaneous emission can lead to a transien…
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 walks on cycles
Malgorzata Bednarska, Andrzej Grudka, Pawel Kurzynski +2
We consider asymptotic behaviour of a Hadamard walk on a cycle. For a walk which starts with a state in which all the probability is concentrated on one node, we find the explicit…
Size-dependent decoherence of excitonic states in semiconductor microcrystallites
Yu-xi Liu, A. Miranowicz, S. K. Ozdemir +2
The size-dependent decoherence of the exciton states resulting from the spontaneous emission is investigated in a semiconductor spherical microcrystallite under condition $a_{B}\ll…