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arXiv · 0809.4118

Quantum Interfaces Using Nanoscale Surface Plasmons

Fang-Yu Hong·Shi-Jie Xiong
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Abstract

The strong coupling between individual optical emitters and propagating surface plasmons confined to a conducting nanotip make this system act as an ideal interface for quantum networks, through which a stationary qubit and a flying photon (surface plasmon) qubit can be interconverted via a Raman process. This quantum interface paves the way for many essential functions of a quantum network, including sending, receiving, transferring, swapping, and entangling qubits at distributed quantum nodes as well as a deterministic source and an efficient detector of a single-photon. Numerical simulation shows that this scheme is robust against experimental imperfections and has high fidelity. Furthermore, being smaller this interface would significantly facilitate the scalability of quantum computers.

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Fang-Yu Hong, Shi-Jie Xiong. 2008-09-24. Quantum Interfaces Using Nanoscale Surface Plasmons. https://doi.org/10.1140/epjd%2Fe2008-00218-8

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