Complex decoherence-free interactions between giant atoms
- URL: http://arxiv.org/abs/2211.00280v1
- Date: Tue, 1 Nov 2022 05:22:29 GMT
- Title: Complex decoherence-free interactions between giant atoms
- Authors: Lei Du, Lingzhen Guo, and Yong Li
- Abstract summary: We show how to implement complex decoherence-free interactions among giant atoms resorting to periodic coupling modulations.
We demonstrate that the phase of the modulation, which is tunable in experiments, can be encoded into the decoherence-free interactions.
- Score: 6.429316632448591
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: Giant atoms provide a promising platform for engineering decoherence-free
interactions which is a major task in modern quantum technologies. Here we
study systematically how to implement complex decoherence-free interactions
among giant atoms resorting to periodic coupling modulations and suitable
arrangements of coupling points. We demonstrate that the phase of the
modulation, which is tunable in experiments, can be encoded into the
decoherence-free interactions, and thus enables the Aharonov-Bohm effect of
photons when the giant atoms constitute an effective closed loop. In
particular, we consider the influence of non-Markovian retardation effect
arising from large separations of the coupling points and study its dependence
on the modulation parameters.
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