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High-impedance microwave resonators with two-photon nonlinear effects

Andersson, S. LU ; Havir, H. LU ; Ranni, A. LU ; Haldar, S. LU and Maisi, V. F. LU (2025) In Nature Communications 16(1).
Abstract

Nonlinear effects play a central role in photonics as they form the foundation for most of the device functionalities such as amplification and quantum state preparation and detection. Typically the nonlinear effects are weak and emerge only at high photon numbers with strong drive. Here we present an experimental study of a Josephson junction -based high-impedance resonator. We show that by taking the resonator to the limit of consisting effectively only of one junction, results in strong nonlinear effects already for the second photon while maintaining a high impedance of the resonance mode. Our experiment yields thus resonators with strong interactions both between individual resonator photons and from the resonator photons to other... (More)

Nonlinear effects play a central role in photonics as they form the foundation for most of the device functionalities such as amplification and quantum state preparation and detection. Typically the nonlinear effects are weak and emerge only at high photon numbers with strong drive. Here we present an experimental study of a Josephson junction -based high-impedance resonator. We show that by taking the resonator to the limit of consisting effectively only of one junction, results in strong nonlinear effects already for the second photon while maintaining a high impedance of the resonance mode. Our experiment yields thus resonators with strong interactions both between individual resonator photons and from the resonator photons to other electric quantum systems. We also present an energy diagram technique which enables to measure, identify and analyse different multi-photon optics processes along their energy conservation lines.

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author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Nature Communications
volume
16
issue
1
article number
552
publisher
Nature Publishing Group
external identifiers
  • scopus:85214923458
  • pmid:39788991
ISSN
2041-1723
DOI
10.1038/s41467-025-55860-8
language
English
LU publication?
yes
id
edf00f06-d239-4dd0-a429-3b70c14a31c4
date added to LUP
2025-03-12 15:44:24
date last changed
2025-07-17 02:51:39
@article{edf00f06-d239-4dd0-a429-3b70c14a31c4,
  abstract     = {{<p>Nonlinear effects play a central role in photonics as they form the foundation for most of the device functionalities such as amplification and quantum state preparation and detection. Typically the nonlinear effects are weak and emerge only at high photon numbers with strong drive. Here we present an experimental study of a Josephson junction -based high-impedance resonator. We show that by taking the resonator to the limit of consisting effectively only of one junction, results in strong nonlinear effects already for the second photon while maintaining a high impedance of the resonance mode. Our experiment yields thus resonators with strong interactions both between individual resonator photons and from the resonator photons to other electric quantum systems. We also present an energy diagram technique which enables to measure, identify and analyse different multi-photon optics processes along their energy conservation lines.</p>}},
  author       = {{Andersson, S. and Havir, H. and Ranni, A. and Haldar, S. and Maisi, V. F.}},
  issn         = {{2041-1723}},
  language     = {{eng}},
  number       = {{1}},
  publisher    = {{Nature Publishing Group}},
  series       = {{Nature Communications}},
  title        = {{High-impedance microwave resonators with two-photon nonlinear effects}},
  url          = {{http://dx.doi.org/10.1038/s41467-025-55860-8}},
  doi          = {{10.1038/s41467-025-55860-8}},
  volume       = {{16}},
  year         = {{2025}},
}