Realizing quantum optics in structured environments with giant atoms
- URL: http://arxiv.org/abs/2304.10710v1
- Date: Fri, 21 Apr 2023 02:44:04 GMT
- Title: Realizing quantum optics in structured environments with giant atoms
- Authors: Xin Wang, Huai-Bing Zhu, Tao Liu and Franco Nori
- Abstract summary: atom-light interfaces with structured photonic environments are often employed to realize unconventional quantum electrodynamics.
We propose to realize structured lightmatter interactions by engineering multiple coupling points of hybrid giant atom-conventionalenvironments.
- Score: 8.30506899856987
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: To go beyond quantum optics in free-space setups, atom-light interfaces with
structured photonic environments are often employed to realize unconventional
quantum electrodynamics (QED) phenomena. However, when employed as quantum
buses, those long-distance nanostructures are limited by fabrication disorders.
In this work, we alternatively propose to realize structured lightmatter
interactions by engineering multiple coupling points of hybrid giant
atom-conventionalenvironments without any periodic structure. We present a
generic optimization method to obtain the real-space coupling sequence for
multiple coupling points. We report a broadband chiral emission in a very wide
frequency regime, with no analog in other quantum setups. Moreover, we show
that the QED phenomena in the band gap environment, such as fractional atomic
decay and dipole-dipole interactions mediated by a bound state, can be observed
in our setup. Numerical results indicate that our proposal is robust against
fabrication disorders of the coupling sequence. Our work opens up a new route
for realizing unconventional light-matter interactions.
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