Bound states and atomic interaction in giant atom waveguide QED with dispersive coupling
In this paper, we investigate the bound states and the effective interaction between a pair of giant atoms, which couples to the coupled resonator waveguide in a nested configuration. To suppress the harmful individual and collective dissipations to the waveguide, we consider the dispersive coupling...
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Main Authors | , |
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Format | Journal Article |
Language | English |
Published |
14.09.2024
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Subjects | |
Online Access | Get full text |
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Summary: | In this paper, we investigate the bound states and the effective interaction
between a pair of giant atoms, which couples to the coupled resonator waveguide
in a nested configuration. To suppress the harmful individual and collective
dissipations to the waveguide, we consider the dispersive coupling scheme,
where the frequency of the giant atoms are far away from the propagating band
of the waveguide. In our scheme, the atomic interaction can be induced by the
overlap between the bound states in the gap. We demonstrate the relative
position dependent atomic coupling and explore its application in the state
transfer. We find that the transfer fidelity of a superposition state can
approach $0.999$. Therefore, our scheme is useful for designing robust quantum
information processing. |
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DOI: | 10.48550/arxiv.2409.09373 |