Teleportation (Kefitzat Haderech, Tay al-Arz) is one of the best known entanglement-based communication protocols. Recent experiments made by Zeilinger's group ( allowed for an effective teleportation between Canarian islands Tenerifa and La Palma. Quantum bits was sent via air. There is a necessity to estimate the quality of information transfer in the presence of decoherence.

We investigate an effect of environment using mathematicaly and physically rigorous approach based on the Davies approximation. One of our aims is to identify parameters of the environment when either the teleportation or enetanglement swapping protocols are most effective and lossless.

  1. D. Kłoda, J. Dajka, Temperature-independent teleportation of qubits in Davies environments, Quant. Inf. Proc. 14, 135 (2015)
  2. J. Dajka and J. Łuczka, Swapping of correlations via teleportation with decoherence, Phys. Rev. A  87, 022301 (2013)