Experimental demonstration of a quantum router
arXiv:1508.01587 · doi:10.1038/srep12452
Abstract
The router is a key element for a network. We describe a scheme to realize genuine quantum routing of single-photon pulses based on cascading of conditional quantum gates in a Mach-Zehnder interferometer and report a proof-of-principle experiment for its demonstration using linear optics quantum gates. The polarization of the control photon routes in a coherent way the path of the signal photon while preserving the qubit state of the signal photon represented by its polarization. We demonstrate quantum nature of this router by showing entanglement generated between the initially unentangled control and signal photons, and confirm that the qubit state of the signal photon is well preserved by the router through quantum process tomography.
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Cited by in corpus (18)
- Microwave photonics with superconducting quantum circuits
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- Designing Quantum Router in IBM Quantum Computer
- Quantum routing of single optical photons with a superconducting flux qubit
- A coherent router for quantum networks
- Quantum Routing for Emerging Quantum Networks
- Implementation of an efficient linear-optical quantum router
- Chiral quantum router with Rydberg atoms
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- Error-Mitigated Multi-Layer Quantum Routing
- Nonreciprocal routing induced by chirality in an atom-dimer waveguide-QED system