A new notation for the quantum teleportation of finite dimensional quantum state through a generally entangled quantum channel is introduced. For a given quantum channel an explict mathematical criterion that governs the faithful teleportation is presented. 1 [email protected] Quantum teleportation has been introduced by Benett et al. [1] and discussed by a number of authors for two d...

Quantum teleportation is a transport of quantum state of a system to another similar system via a classical channel [1]. The principles of quantum mechanics demand that for realization of such a transport, the sender and the receiver must have two ancillary quantum systems, being strongly quantum-mechanically correlated (entangled). Quantum teleportation is a fundamental phenomenon of quantum w...

Quantum teleportation and quantum memory are two crucial elements for large-scale quantum networks. With the help of prior distributed entanglement as a "quantum channel," quantum teleportation provides an intriguing means to faithfully transfer quantum states among distant locations without actual transmission of the physical carriers [Bennett CH, et al. (1993) Phys Rev Lett 70(13):1895-1899]....

We calculate the highest possible information gain in a measurement of entangled states when employing a beamsplitter. The result is used to evaluate the fidelity, averaged over all unknown inputs, in a realistic teleportation protocol that takes account of the imperfect detection of Bell states. Finally, we introduce a probabilistic teleportation scheme, where measurements are made in a partia...

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...

We discuss the criteria presently used for evaluating the efficiency of quantum teleportation schemes for continuous variables. It is argued that the fidelity criterion used so far has some severe drawbacks, and that a fidelity value larger than 2/3 is actually required for successful quantum teleportation. This value has never been reached experimentally so far.

Quantum teleportation [1-3] is a striking illustration of the difference between classical and quantum communication processes [4]. In teleportation, communication is facilitated by entanglement. But state transmission is predicated on belief that the entanglement between the resource particles is perfect and the protocol steps are error-free, both of which it is impossible to establish uncondi...

We propose a method to apply genetic algorithms to the quantum circuit design. We show by experiments that without any deep knowledge of the problem it is possible to evolve a circuit for the quantum teleportation simpler than ever known. keyword: genetic algorithms, quantum teleportation, quantum computer, quantum computing, quantum circuit.