Kerr nonlinearity in a superconducting Josephson metamaterial
Journal Article
·
· Physical Review B
- Univ. Grenoble Alpes, Grenoble (France)
- Univ. Grenoble Alpes and CNRS, Grenoble (France)
- Univ. Grenoble Alpes, Grenoble (France); Royal Institute of Technology (KTH), Stockholm (Sweden)
- Univ. Grenoble Alpes, Grenoble (France); Argonne National Lab. (ANL), Argonne, IL (United States)
Here, we present a detailed experimental and theoretical analysis of the dispersion and nonlinear Kerr frequency shifts of plasma modes in a one-dimensional Josephson junction chain containing 500 superconducting quantum interfence devices in the regime of weak nonlinearity. The measured low-power dispersion curve agrees perfectly with the theoretical model if we take into account the Kerr renormalization of the bare frequencies and the long-range nature of the island charge screening by a remote ground plane. We measured the self- and cross-Kerr shifts for the frequencies of the eight lowest modes in the chain. We compare the measured Kerr coefficients with theory and find good agreement.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- European Research Council (ERC); USDOE
- Grant/Contract Number:
- AC02-06CH11357
- OSTI ID:
- 1485126
- Journal Information:
- Physical Review B, Vol. 98, Issue 9; ISSN 2469-9950
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 22 works
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