Tunable Chiral Bound States with Giant Atoms
Artikel i vetenskaplig tidskrift, 2021

We propose tunable chiral bound states in a system composed of superconducting giant atoms and a Josephson photonic-crystal waveguide (PCW), with no analog in other quantum setups. The chiral bound states arise due to interference in the nonlocal coupling of a giant atom to multiple points of the waveguide. The chirality can be tuned by changing either the atom-waveguide coupling or the external bias of the PCW. Furthermore, the chiral bound states can induce directional dipole-dipole interactions between multiple giant atoms coupling to the same waveguide. Our proposal is ready to be implemented in experiments with superconducting circuits, where it can be used as a tunable toolbox to realize topological phase transitions and quantum simulations.

Författare

Xin Wang

Xi'an Jiaotong University

RIKEN

Tao Liu

RIKEN

Anton Frisk Kockum

Chalmers, Mikroteknologi och nanovetenskap (MC2), Tillämpad kvantfysik

Hong Rong Li

Xi'an Jiaotong University

F. Nori

University of Michigan

RIKEN

Physical Review Letters

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

Vol. 126 4 043602

Ämneskategorier

Atom- och molekylfysik och optik

Teoretisk kemi

Den kondenserade materiens fysik

DOI

10.1103/PhysRevLett.126.043602

Mer information

Senast uppdaterat

2021-02-09