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arXiv · 1706.01743

A theoretical analysis of extending frequency-bin entanglement from photon-photon to atom-photon hybrid systems

Yuan Sun·Chang Liu·Bao-Quan Ou·Ping-Xing Chen
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Abstract

Inspired by the recent developments in the research of atom-photon quantum interface and energy-time entanglement between single photon pulses, we propose to establish the concept of a special energy-time entanglement between a single photon pulse and internal states of a single atom, which is analogous to the frequency-bin entanglement between single photon pulses. We show that this type of entanglement arises naturally in the interaction between frequency-bin entangled single photon pulse pair and a single atom, via straightforward atom-photon phase gate operations. We also discuss the properties of this type of entanglement and show a preliminary example of its potential application in quantum networking. Moreover, a quantum entanglement witness is constructed to detect such entanglement from a reasonably large set of separable states.

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Yuan Sun, Chang Liu, Bao-Quan Ou, Ping-Xing Chen. 2017-06-06. A theoretical analysis of extending frequency-bin entanglement from photon-photon to atom-photon hybrid systems. https://arxiv.org/abs/1706.01743

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