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Updated: May 7, 2026

Generation and Coherent Control of Pulsed Quantum Frequency Combs
Published on: June 8, 2018
Waveguide-QED-based photonic quantum computation
Huaixiu Zheng1, Daniel J Gauthier, Harold U Baranger
1Department of Physics, Duke University, Post Office Box 90305, Durham, North Carolina 27708, USA.
Abstract:
We propose a new scheme for quantum computation using flying qubits--propagating photons in a one-dimensional waveguide interacting with matter qubits. Photon-photon interactions are mediated by the coupling to a four-level system, based on which photon-photon π-phase gates (CONTROLLED-NOT) can be implemented for universal quantum computation. We show that high gate fidelity is possible, given recent dramatic experimental progress in superconducting circuits and photonic-crystal waveguides. The proposed system can be an important building block for future on-chip quantum networks.
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