Topology and retardation effect of a giant atom in a topological
waveguide
- URL: http://arxiv.org/abs/2103.04542v2
- Date: Thu, 14 Jul 2022 06:46:24 GMT
- Title: Topology and retardation effect of a giant atom in a topological
waveguide
- Authors: Weijun Cheng, Zhihai Wang and Yu-xi Liu
- Abstract summary: We study a system that a giant atom is coupled to two points of a one-dimensional topological waveguide formed by the Su-Schrieffer-Heeger chain.
We find that the giant atom can act as an effective boundary and induce the chiral zero energy modes for the waveguide under the periodical boundary.
Our work may promote more studies on the interaction between matter and topological environment.
- Score: 1.468677167874397
- License: http://creativecommons.org/publicdomain/zero/1.0/
- Abstract: The interaction between the quantum emitter and topological photonic system
makes both the emitter and the photon behave in exotic ways. We here study a
system that a giant atom is coupled to two points of a one-dimensional
topological waveguide formed by the Su-Schrieffer-Heeger (SSH) chain. The
topological nature of the hybrid system is studied. We find that the giant atom
can act as an effective boundary and induce the chiral zero energy modes for
the waveguide under the periodical boundary. The properties of these modes are
similar to those in the SSH model with open boundary. Meanwhile, the SSH
waveguide, as a structured environment, induces the retarded effect and the
non-Markovian dissipation of the giant atom. Our work may promote more studies
on the interaction between matter and topological environment. Experimental
demonstration for our study using superconducting quantum circuits is very
possible within current technology.
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