We propose and analyze a setup based on (solid-state) qubits coupled to a common multi-mode transmission line, which allows for coherent spin-spin interactions over macroscopic on-chip distances, without any ground-state cooling requirements for the data bus. Our approach allows for the realization of fast deterministic quantum gates between distant qubits, the simulation of quantum spin models with engineered (long-range) interactions, and provides a flexible architecture for the implementation of quantum approximate optimization algorithms.
@article{arxiv.1809.03794,
title = {Quantum Simulation and Optimization in Hot Quantum Networks},
author = {Martin J. A. Schuetz and Benoît Vermersch and Gerhard Kirchmair and Lieven M. K. Vandersypen and J. Ignacio Cirac and Mikhail D. Lukin and Peter Zoller},
journal= {arXiv preprint arXiv:1809.03794},
year = {2019}
}