Please use this identifier to cite or link to this item: http://hdl.handle.net/10497/22135
Title: 
Authors: 
Issue Date: 
2020
Citation: 
Mok, W. K., You, J. B., Kwek, L. C., & Aghamalyan, D. (2020). Microresonators enhancing long-distance dynamical entanglement generation in chiral quantum networks. Physical Review A, 101(5), Article 053861. https://doi.org/10.1103/PhysRevA.101.053861
Abstract: 
Chiral quantum networks provide a promising route for realizing quantum information processing and quantum communication. Here we describe how two distant quantum nodes of chiral quantum network become dynamically entangled by a photon transfer through a common one-dimensional chiral waveguide. We harness the directional asymmetry in chirally coupled single-mode ring resonators to generate an entangled state between two atoms. We report a concurrence of up to 0.969, a huge improvement over 0.736, which was suggested and analyzed in great detail in Gonzalez-Ballestero et al. [Phys. Rev. B 92, 155304 (2015)]. This significant enhancement is achieved by introducing microresonators which serve as an efficient photonic interface between light and matter. The robustness of our protocol to experimental imperfections such as fluctuations in internodal distance, imperfect chirality, various detunings, and atomic spontaneous decay is demonstrated. Our proposal can be utilized for long-distance entanglement generation in quantum networks, which is a key ingredient for many applications in quantum computing and quantum information processing.
URI: 
ISSN: 
2469-9926 (print)
2469-9934 (online)
DOI: 
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Open
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