Microtoroidal resonators enhance long-distance dynamical entanglement
generation in chiral quantum networks
- URL: http://arxiv.org/abs/1912.11886v1
- Date: Thu, 26 Dec 2019 15:34:27 GMT
- Title: Microtoroidal resonators enhance long-distance dynamical entanglement
generation in chiral quantum networks
- Authors: Wai-Keong Mok, Davit Aghamalyan, Jia-Bin You, Leong-Chuan Kwek
- Abstract summary: Chiral quantum networks provide a promising route for realising quantum information processing and quantum communication.
We harness the directional asymmetry in chirally-coupled single-mode ring resonators to generate entangled state between two atoms.
We report a concurrence of up to 0.969, a huge improvement over the 0.736 which was suggested and analyzed in great detail.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Chiral quantum networks provide a promising route for realising 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 1D chiral waveguide. We harness the
directional asymmetry in chirally-coupled single-mode ring resonators to
generate entangled state between two atoms. We report a concurrence of up to
0.969, a huge improvement over the 0.736 which was suggested and analyzed in
great detail in Ref. [1]. This significant enhancement is achieved by
introducing microtoroidal resonators which serve as efficient photonic
interface between light and matter. Robustness of our protocol to experimental
imperfections such as fluctuations in inter-nodal distance, imperfect
chirality, various detunings and atomic spontaneous decay is demonstrated. Our
proposal can be utilised for long-distance entanglement generation in quantum
networks which is a key ingredient for many applications in quantum computing
and quantum information processing.
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