Josephson meta-materials with tunable non-linearities and traveling wave parametric amplification
ORAL
Abstract
Josephson meta-materials have recently emerged as very promising platform for novel quantum optics experiments in microwave domain. Engineering them at sub-wavelength scales can allow complete control over wave dispersion and non-linear interactions.
We will discuss experimental realization of a broadband non-linear Josephson meta-material composed of an array of superconducting non-linear asymmetric inductive elements (SNAILs). The asymmetry in the SNAILs allows tuning and sign reversal of the Kerr and second order non-linearity by applying an external magnetic flux. The sign reversal of non-linearities at sub wavelength scales can also be utilized for their suppression. We will present use case of such devices as a near quantum limited broadband amplifier and discuss perspectives.
We will discuss experimental realization of a broadband non-linear Josephson meta-material composed of an array of superconducting non-linear asymmetric inductive elements (SNAILs). The asymmetry in the SNAILs allows tuning and sign reversal of the Kerr and second order non-linearity by applying an external magnetic flux. The sign reversal of non-linearities at sub wavelength scales can also be utilized for their suppression. We will present use case of such devices as a near quantum limited broadband amplifier and discuss perspectives.
*This work was supported by French ANR-15-IDEX-02, French ANR-18-CE47-0003 and EU-Horizon 2020 (grant #899561, MSC-754303 and MSCA-IF-835791).
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Presenters
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Arpit Ranadive
- Univ. Grenoble Alpes, CNRS, Grenoble INP, Institut Néel, 38000 Grenoble, France
- Univ. Grenoble Alpes, CNRS, Grenoble INP, Institut N´eel, 38000 Grenoble, France