Entanglement preparation and non-reciprocal excitation evolution in giant atoms by controllable dissipation and coupling

• URL: http://arxiv.org/abs/2012.07003v2
• Date: Tue, 13 Jul 2021 06:17:19 GMT
• Title: Entanglement preparation and non-reciprocal excitation evolution in giant atoms by controllable dissipation and coupling
• Authors: Hongwei Yu, Zhihai Wang and Jin-Hui Wu
• Abstract summary: We investigate the dynamics of giant atom(s) in a waveguide QED scenario, where the atom couples to the coupled resonator waveguide via two sites. For a single giant atom setup, we find that the atomic dissipation rate can be adjusted by tuning its size. We can theoretically realize the robust entangled state preparation and non-reciprocal excitation evolution.
• Score: 0.29005223064604074
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: We investigate the dynamics of giant atom(s) in a waveguide QED scenario, where the atom couples to the coupled resonator waveguide via two sites. For a single giant atom setup, we find that the atomic dissipation rate can be adjusted by tuning its size. For the two giant atoms system, the waveguide will induce the controllable individual and collective dissipation as well as effective inter-atom coupling. As a result, we can theoretically realize the robust entangled state preparation and non-reciprocal excitation evolution. We hope our study can be applied in quantum information processing based on photonic and acoustic waveguide setup.

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