Abstract

Superconducting quantum systems (artificial atoms) have been recently successfully used to demonstrate on-chip effects of quantum optics with single atoms in the microwave range. In particular, a well-known effect of four wave mixing could reveal a series of features beyond classical physics, when a non-linear medium is scaled down to a single quantum scatterer. Here we demonstrate the phenomenon of quantum wave mixing (QWM) on a single superconducting artificial atom. In the QWM, the spectrum of elastically scattered radiation is a direct map of the interacting superposed and coherent photonic states. Moreover, the artificial atom visualises photon-state statistics, distinguishing coherent, one- and two-photon superposed states with the finite (quantised) number of peaks in the quantum regime. Our results may give a new insight into nonlinear quantum effects in microwave optics with artificial atoms.

Details

Title
Quantum wave mixing and visualisation of coherent and superposed photonic states in a waveguide
Author
A Yu Dmitriev 1 ; Shaikhaidarov, R 2 ; Antonov, V N 2 ; Hönigl-Decrinis, T 3 ; Astafiev, O V 4 

 Laboratory of Artificial Quantum Systems, Moscow Institute of Physics and Technology, Dolgoprudny, Russia; Institute of Solid State Physics, Russian Academy of Sciences, Chernogolovka, Russian Federation 
 Laboratory of Artificial Quantum Systems, Moscow Institute of Physics and Technology, Dolgoprudny, Russia; Department of Physics, Royal Holloway, University of London, Surrey, UK 
 Department of Physics, Royal Holloway, University of London, Surrey, UK; National Physical Laboratory, Teddington, UK 
 Laboratory of Artificial Quantum Systems, Moscow Institute of Physics and Technology, Dolgoprudny, Russia; Department of Physics, Royal Holloway, University of London, Surrey, UK; National Physical Laboratory, Teddington, UK 
Pages
1-6
Publication year
2017
Publication date
Nov 2017
Publisher
Nature Publishing Group
e-ISSN
20411723
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
1961816437
Copyright
© 2017. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.