Saved in:
| Main Authors: | , , , , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2025
|
| Subjects: | |
| Online Access: | https://arxiv.org/abs/2510.21029 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866908661499035648 |
|---|---|
| author | Matkovic, Kyle Russell, Patrick Palmer, Andrew Helgemo, Eric Delventhal, Lukas Zuo, Kun Surse, Kundan Rahman, Rajib Cassidy, Maja C. |
| author_facet | Matkovic, Kyle Russell, Patrick Palmer, Andrew Helgemo, Eric Delventhal, Lukas Zuo, Kun Surse, Kundan Rahman, Rajib Cassidy, Maja C. |
| contents | Electrons levitating above the surface of solid neon have recently emerged as a promising platform for high-quality qubits. The morphology and uniformity of the neon growth in these systems is crucial for qubit performance in a scalable architecture. Here we report on the controlled growth and characterization of thin solid neon films using multiplexed superconducting microwave resonators. By monitoring changes in the resonant frequency and internal quality factor ($Q_i$) of an array of frequency multiplexed quarter-wave coplanar waveguide resonators, we quantify the spatial uniformity of the film. A pulsed gas deposition protocol near the neon triple point results in repeatable film formation, generating measurable shifts in frequency and variations in $Q_i$ across the resonator array. Notably, introducing a post-deposition anneal at 12 K for one hour improves the film homogeneity, as shown by the reduced resonator-to-resonator variance in frequency and $Q_i$, consistent with enhanced wetting. These results demonstrate resonator-based metrology as an in-situ tool for characterising neon film growth, directly supporting the development of electron on inert quantum solid qubit platforms. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_21029 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Characterizing Neon Thin Film Growth with an NbTiN Superconducting Resonator Array Matkovic, Kyle Russell, Patrick Palmer, Andrew Helgemo, Eric Delventhal, Lukas Zuo, Kun Surse, Kundan Rahman, Rajib Cassidy, Maja C. Mesoscale and Nanoscale Physics Quantum Physics Electrons levitating above the surface of solid neon have recently emerged as a promising platform for high-quality qubits. The morphology and uniformity of the neon growth in these systems is crucial for qubit performance in a scalable architecture. Here we report on the controlled growth and characterization of thin solid neon films using multiplexed superconducting microwave resonators. By monitoring changes in the resonant frequency and internal quality factor ($Q_i$) of an array of frequency multiplexed quarter-wave coplanar waveguide resonators, we quantify the spatial uniformity of the film. A pulsed gas deposition protocol near the neon triple point results in repeatable film formation, generating measurable shifts in frequency and variations in $Q_i$ across the resonator array. Notably, introducing a post-deposition anneal at 12 K for one hour improves the film homogeneity, as shown by the reduced resonator-to-resonator variance in frequency and $Q_i$, consistent with enhanced wetting. These results demonstrate resonator-based metrology as an in-situ tool for characterising neon film growth, directly supporting the development of electron on inert quantum solid qubit platforms. |
| title | Characterizing Neon Thin Film Growth with an NbTiN Superconducting Resonator Array |
| topic | Mesoscale and Nanoscale Physics Quantum Physics |
| url | https://arxiv.org/abs/2510.21029 |