Giant Atoms in a Synthetic Frequency Dimension
Artikel i vetenskaplig tidskrift, 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.

Författare

Lei Du

Beijing Computational Science Research Center

Yan Zhang

Northeast Normal University

Jin-Hui Wu

Northeast Normal University

Anton Frisk Kockum

Chalmers, Mikroteknologi och nanovetenskap, Tillämpad kvantfysik

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

Stora atomer - en ny regim för kvantoptik

Vetenskapsrådet (VR) (2019-03696), 2020-01-01 -- 2023-12-31.

Ämneskategorier

Atom- och molekylfysik och optik

Annan fysik

Teoretisk kemi

DOI

10.1103/PhysRevLett.128.223602

PubMed

35714262

Mer information

Senast uppdaterat

2022-07-01