Tuning atom-field interaction via phase shaping
Journal article, 2024
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 %).
Electromagnetic fields
Author
Yu Ting Cheng
National Tsing Hua University
Chin Hsun Chien
National Tsing Hua University
K. M. Hsieh
National Tsing Hua University
Y. H. Huang
National Tsing Hua University
P. Y. Wen
National Chung Cheng University
Wei Ju Lin
National Tsing Hua University
Yong Lu
Chalmers, Microtechnology and Nanoscience (MC2), Quantum Technology
F. Aziz
National Tsing Hua University
Ching Ping Lee
National Tsing Hua University
K. T. Lin
National Taiwan University
National Center for Theoretical Sciences Taiwan
C. Y. Chen
National Tsing Hua University
J. C. Chen
National Tsing Hua University
Chih Sung Chuu
National Tsing Hua University
Anton Frisk Kockum
Chalmers, Microtechnology and Nanoscience (MC2), Applied Quantum Physics
G. D. Lin
National Taiwan University
Foxconn
National Center for Theoretical Sciences Taiwan
Yen Hsiang Lin
National Tsing Hua University
Io Chun Hoi
City University of Hong Kong
National Tsing Hua University
Physical Review A
24699926 (ISSN) 24699934 (eISSN)
Vol. 109 2 023705Giant 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
Condensed Matter Physics
DOI
10.1103/PhysRevA.109.023705