Long distance quantum teleportation
نویسندگان
چکیده
Quantum teleportation is a core protocol in quantum information science. Besides revealing the fascinating feature of quantum entanglement, quantum teleportation provides an ultimateway to distribute quantum state over extremely long distance, which is crucial for global quantum communication and future quantumnetworks. In this review, we focus on the long distance quantum teleportation experiments, especially those employing photonic qubits. From the viewpoint of realworld application, both the technical advantages and disadvantages of these experiments are discussed.
منابع مشابه
Long-distance High-fidelity Teleportation Using Singlet States
A quantum communication system is proposed that uses polarization-entangled photons and trapped-atom quantum memories. This system is capable of long-distance, highfidelity teleportation, and long-duration quantum storage.
متن کاملArchitectures for long-distance quantum teleportation
A system architecture for achieving long-distance, high-fidelity teleportation and long-duration quantum storage is proposed. It uses polarizationentangled photons and trapped-atom quantum memories and is compatible with transmission over standard telecommunication fibre. An extension of this architecture permits long-distance transmission and storage of Greenberger– Horne–Zeilinger states.
متن کاملLong distance, unconditional teleportation of atomic states via complete Bell state measurements.
We propose a scheme for creating and storing quantum entanglement over long distances. Optical cavities that store this long-distance entanglement in atoms could then function as nodes of a quantum network, in which quantum information is teleported from cavity to cavity. The teleportation is conducted unconditionally via measurements of all four Bell states, using a novel method of sequential ...
متن کاملOptimizing Teleportation Cost in Multi-Partition Distributed Quantum Circuits
There are many obstacles in quantum circuits implementation with large scales, so distributed quantum systems are appropriate solution for these quantum circuits. Therefore, reducing the number of quantum teleportation leads to improve the cost of implementing a quantum circuit. The minimum number of teleportations can be considered as a measure of the efficiency of distributed quantum systems....
متن کاملNonlocal memory effects allow perfect teleportation with mixed states
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....
متن کامل