Sala 416 10:15 
Seminarium Zakładu Metod Matematycznych

Piotr Kopszak

Port based teleportation - the protocol, it's performance and the degradation of the resource

In my talk I will describe so-called port-based teleportation (PBT) protocol, i.e. a teleportation protocol that, unlike the standard teleportation introduced by Bennet et al. in 1993, does not require the unitary correction in the last step. It does so at the cost of limited teleportation efficiency. I will describe the qualitative analysis of the protocol which were possible to obtain thanks to the system's symmetryies with respect to partially transposed permuitation operators. In the second part I will concentrate on the more specific task of estimation of the degradation that the resource state undergoes in one round of PBT and it's usefulness for the purther teleportations (so called entanglement recycling).