Tuning atom-field interaction via phase shaping
Journal
Physical Review A
Journal Volume
109
Journal Issue
2
Start Page
023705
ISSN
2469-9926
2469-9934
Date Issued
2024-02-07
Author(s)
Y.-T. Cheng
C.-H. Chien
K.-M. Hsieh
Y.-H. Huang
P. Y. Wen
W.-J. Lin
Y. Lu
F. Aziz
C.-P. Lee
K.-T. Lin
C.-Y. Chen
J. C. Chen
C.-S. Chuu
A. F. Kockum
Y.-H. Lin
I.-C. Hoi
Abstract
A coherent electromagnetic field can be described by its amplitude, frequency, and phase. All these properties can influence the interaction between the field and an atom. Here we demonstrate the phase shaping of microwaves that are scattered by a superconducting artificial atom coupled to the end of a semi-infinite one-dimensional transmission line. In particular, we input a weak exponentially rising pulse with phase modulation to a transmon qubit. We observe that atom-field interaction can be tuned from a nearly full interaction (interaction efficiency, i.e., amount of the field energy interacting with the atom, of 94.5 %) to effectively no interaction (interaction efficiency of 3.5 %).
Publisher
American Physical Society (APS)
Type
journal article