A new interpretation of entanglement entropy is proposed: entanglement entropy of a pure state with respect to a division of a Hilbert space into two subspaces 1 and 2 is an amount of information, which can be transmitted through 1 and 2 from a system interacting with 1 to another system interacting with 2. The transmission medium is quantum entanglement between 1 and 2. In order to support the...

We study bidirectional teleportation while explicitly taking into account a mixed environment. This environment initially causes pure dephasing decoherence of the Bell state which assists teleportation. find that when is performed in one direction it accompanied by transfer correlations teleported qubit state. In other direction, if no new process occurs then not only qubit, but also its with a...

We propose a dynamical system that captures changes to the network centrality of nodes as external interest in those nodes vary. We derive this system by adding timedependent teleportation to the PageRank score. The result is not a single set of importance scores, but rather a time-dependent set. These can be converted into ranked lists in a variety of ways, for instance, by taking the largest ...

We analyze quantum teleportation for composite systems, specifically for concatenated teleporation decomposing a large composite state into smaller states of dimension commensurate with the channel and partial teleportation teleporting one component of a larger quantum state . We obtain an exact expression for teleportation fidelity that depends solely on the dimension and singlet fraction for ...

For continuous variable systems, some protocols for entanglement swapping, establishing entanglement between distant stations through teleportation, testing the efficiency of teleportation with the aid of a third party, and combining teleportation with cloning have been proposed. But no protocol for the explicit teleportation of an entangled continuous variable state exists in the literature, a...

The non-negative Wigner function of all quantum states involved in teleportation of Gaussian states using the standard continuous-variable teleportation protocol means that there is a local realistic phase-space description of the process. This includes the coherent states teleported up to now in experiments. We extend the phase-space description to teleportation of non-Gaussian states using th...

641 It has been over two decades since the discovery of quantum tele­ portation, in what is arguably one of the most interesting and exciting implications of the ‘weirdness’ of quantum mechanics. Prior to this landmark discovery, the fascinating idea of teleporta­ tion belonged in the realm of science fiction. First coined in 1931 by Charles H. Fort1, the term ‘teleportation’ has since been use...

One of the most striking consequences of quantum physics is quantum teleportation - the possibility to transfer quantum states over arbitrary distances. Since its theoretical introduction, teleportation has been demonstrated experimentally up to the distance of 143 km. In the original proposal two parties share a maximally entangled quantum state acting as a resource for the teleportation task....

Traditional continuous-variable teleportation can only approach unit fidelity in the limit of an infinite (and unphysical) amount of squeezing. We describe a new method for continuous-variable teleportation that approaches unit fidelity with finite resources. The protocol is not based on squeezed states as in traditional teleportation but on an ensemble of single photon entangled states. We cha...