Benchmarking a Teleportation Protocol realized in Superconducting Circuits
Abstract
Teleportation of a quantum state may be used for distributing entanglement between distant qubits in quantum communication and for quantum computation. Here we demonstrate the implementation of a teleportation protocol, up to the single-shot measurement step, with superconducting qubits coupled to a microwave resonator. Using full quantum state tomography and evaluating an entanglement witness, we show that the protocol generates a genuine tripartite entangled state of all three-qubits. Calculating the projection of the measured density matrix onto the basis states of two qubits allows us to reconstruct the teleported state. Repeating this procedure for a complete set of input states we find an average output state fidelity of 88%.
Cite
@article{arxiv.1107.4774,
title = {Benchmarking a Teleportation Protocol realized in Superconducting Circuits},
author = {M. Baur and A. Fedorov and L. Steffen and S. Filipp and M. P. da Silva and A. Wallraff},
journal= {arXiv preprint arXiv:1107.4774},
year = {2012}
}
Comments
4 pages, 4 figures