|
| | | | |
| | | |
| Stat |
Members: 3645
Articles: 2'502'364
Articles rated: 2609
23 April 2024 |
|
| | | | |
|
Article overview
| |
|
|
Effects of reactive, dissipative and rate-limited nonlinearity on the behaviour of superconducting parametric amplifiers | | Christopher N Thomas
; Stafford Withington
; Songyuan Zhao
; | | Date: |
21 Jun 2022 | | Abstract: | We present a formalism for modelling parametric amplification by resonators
subject to rate-limited nonlinearity of mixed reactive/dissipative character,
with particular relevance to superconducting devices. The non-linearity is
assumed to be characterised by a single state parameter, which responds to
changes in the energy stored in the resonator with finite response time. We
show how the operating point and small signal amplification behaviour of the
pumped resonator can be calculated, characterised and optimised in terms of a
set of three dimensionless parameters. The formalism is then illustrated with a
simple, first-order, model nonlinearity and the implications for amplification
via quasiparticle generation in a superconductor discussed. Throughout we
describe how the parameters needed to characterise the device can be determined
experimentally from steady-state measurements. A key result of this paper is
that rate-limiting of a nonlinear mechanism does not preclude amplification,
although it does limit the bandwidth over which it may be achieved. | | Source: | arXiv, 2206.10512 | | Services: | Forum | Review | PDF | Favorites | |
|
|
No review found.
Did you like this article?
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
browser Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
|
| |
|
|
|
|
News, job offers and information for researchers and scientists:
| |
REGISTER