Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2024
|
| Subjects: | |
| Online Access: | https://arxiv.org/abs/2408.11807 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866929472445349888 |
|---|---|
| author | Will, Marco Haque, Mohammad Tasnimul Chaudhry, Yuvraj Golubev, Dmitry Hakonen, Pertti |
| author_facet | Will, Marco Haque, Mohammad Tasnimul Chaudhry, Yuvraj Golubev, Dmitry Hakonen, Pertti |
| contents | Low-noise amplifiers are of great importance in the field of quantum technologies. We study a thermally driven parametric amplifier based on a superconductor-insulator-graphene-insulator-superconductor (SIGIS) junction coupled to a superconducting microwave cavity. The strong non-linearity in the temperature dependence of our device leads to thermal self-modulation that produces impedance oscillations at frequencies around twice the angular cavity resonance frequency $ω_\mathrm{r}$. In particular, reactance modulation of the effective capacitance yields a gain of 18.6 dB over a frequency span of 125 kHz with a minimum noise temperature of $T_\mathrm{N} = 1.4$ K. Our theoretical modelling gives insight into the exact mixing processes, confirmation of the electron-phonon coupling parameter and possible improvements of the studied system. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2408_11807 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Low-noise parametric microwave amplifier based on self-heated nonlinear impedance with sub-nanosecond thermal response Will, Marco Haque, Mohammad Tasnimul Chaudhry, Yuvraj Golubev, Dmitry Hakonen, Pertti Mesoscale and Nanoscale Physics Low-noise amplifiers are of great importance in the field of quantum technologies. We study a thermally driven parametric amplifier based on a superconductor-insulator-graphene-insulator-superconductor (SIGIS) junction coupled to a superconducting microwave cavity. The strong non-linearity in the temperature dependence of our device leads to thermal self-modulation that produces impedance oscillations at frequencies around twice the angular cavity resonance frequency $ω_\mathrm{r}$. In particular, reactance modulation of the effective capacitance yields a gain of 18.6 dB over a frequency span of 125 kHz with a minimum noise temperature of $T_\mathrm{N} = 1.4$ K. Our theoretical modelling gives insight into the exact mixing processes, confirmation of the electron-phonon coupling parameter and possible improvements of the studied system. |
| title | Low-noise parametric microwave amplifier based on self-heated nonlinear impedance with sub-nanosecond thermal response |
| topic | Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2408.11807 |