Giant Atoms in a Synthetic Frequency Dimension
Journal article, 2022

Giant atoms that interact with real-space waveguides at multiple spatial points have attracted extensive attention due to their unique interference effects. Here we propose a feasible scheme for constructing giant atoms in a synthetic frequency dimension with, e.g., a dynamically modulated superconducting resonator and a tailored three-level artificial atom. Both analytical and numerical calculations show good agreement between our scheme and real-space two-level giant atoms. In particular, the symmetry of the model in momentum space can be broken by tuning the phase of the external field applied on the atom, enabling chiral interactions between the atom and the frequency lattice. We further demonstrate the possibility of simulating cascaded interaction and directional excitation transfer in the frequency dimension by directly extending our model to involve more such effective giant atoms.

Author

Lei Du

Beijing Computational Science Research Center

Yan Zhang

Northeast Normal University

Jin-Hui Wu

Northeast Normal University

Anton Frisk Kockum

Chalmers, Microtechnology and Nanoscience (MC2), Applied Quantum Physics

Yong Li

Hainan University

Hunan Normal University

Beijing Computational Science Research Center

Physical Review Letters

0031-9007 (ISSN) 1079-7114 (eISSN)

Vol. 128 22 223602

Giant atoms - a new regime in quantum optics

Swedish Research Council (VR) (2019-03696), 2020-01-01 -- 2023-12-31.

Subject Categories

Atom and Molecular Physics and Optics

Other Physics Topics

Theoretical Chemistry

DOI

10.1103/PhysRevLett.128.223602

PubMed

35714262

More information

Latest update

7/1/2022 7