World record for quantum teleportation have broken by Two team which can send quantum information 7 kilometres of fibre optic networks. In order to set a long teleportation need to exchange quantum cryptopic keys for encoding through fibres.
Quantum transportation is partical's travelling to another place with particular distance without phsycal travelling between them. We need three participants with one way teleportation: Alice, Bob, and Charlie, for instance. To make an exchange between Alice and Bob need cryptographic keys with setting up the storage for teleportation using charlie's help.
in outstanding, Alice transmits a particle (A) to Charlie. While Bob establishes a pair of entangled particles (B & C), then, sends B to Charlie and withstands on C. Charlie accepts both A and B, and assesses the particles in such a way that It is not Possible to tell whic particle was sent by Alice or by Bob. This is called Bell State Measurement result in quantum state of particle A is tranferred to particle C, whic is with Bob.
It can shorten the distance conceptually and become shortest one now with transmitting the particle particularly.