Quantum communication testbeds provide a useful resource for experimentally investigating a variety of communication protocols. Here we demonstrate a superconducting circuit testbed with bidirectional multi-photon state transfer capability using time-domain shaped wavepackets. The system we use to achieve this comprises two remote nodes, each including a tunable superconducting transmon qubit and a tunable microwave-frequency resonator, linked by a 2 m-long superconducting coplanar waveguide, which serves as a transmission line. We transfer both individual and superposition Fock states between the two remote nodes, and additionally show that this bidirectional state transfer can be done simultaneously, as well as used to entangle elements in the two nodes.
@article{arxiv.2310.00124,
title = {Bidirectional multi-photon communication between remote superconducting nodes},
author = {Joel Grebel and Haoxiong Yan and Ming-Han Chou and Gustav Andersson and Christopher R. Conner and Yash J. Joshi and Jacob M. Miller and Rhys G. Povey and Hong Qiao and Xuntao Wu and Andrew N. Cleland},
journal= {arXiv preprint arXiv:2310.00124},
year = {2024}
}
Comments
Main Paper has 6 pages, 4 figures. Supplementary has 14 pages, 16 figures, 2 tables