Automated long-range compensation of an rf quantum dot sensor
Fuente:
arXiv
Enregistré dans:
| Auteurs principaux: | , , , , , , , , |
|---|---|
| Format: | Preprint |
| Publié: |
2023
|
| Sujets: | |
| Accès en ligne: | |
| Tags: |
Ajouter un tag
Pas de tags, Soyez le premier à ajouter un tag!
|
| _version_ | 1866910919612694528 |
|---|---|
| author | Hickie, Joseph van Straaten, Barnaby Fedele, Federico Jirovec, Daniel Ballabio, Andrea Chrastina, Daniel Isella, Giovanni Katsaros, Georgios Ares, Natalia |
| author_facet | Hickie, Joseph van Straaten, Barnaby Fedele, Federico Jirovec, Daniel Ballabio, Andrea Chrastina, Daniel Isella, Giovanni Katsaros, Georgios Ares, Natalia |
| contents | Charge sensing is a sensitive technique for probing quantum devices, of particular importance for spin qubit readout. To achieve good readout sensitivities, the proximity of the charge sensor to the device to be measured is a necessity. However, this proximity also means that the operation of the device affects, in turn, the sensor tuning and ultimately the readout sensitivity. We present an approach for compensating for this cross-talk effect allowing for the gate voltages of the measured device to be swept in a 1 V x 1 V window while maintaining a sensor configuration chosen by a Bayesian optimiser. Our algorithm is a key contribution to the suite of fully automated solutions required for the operation of large quantum device architectures. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2310_02135 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Automated long-range compensation of an rf quantum dot sensor Hickie, Joseph van Straaten, Barnaby Fedele, Federico Jirovec, Daniel Ballabio, Andrea Chrastina, Daniel Isella, Giovanni Katsaros, Georgios Ares, Natalia Mesoscale and Nanoscale Physics Quantum Physics Charge sensing is a sensitive technique for probing quantum devices, of particular importance for spin qubit readout. To achieve good readout sensitivities, the proximity of the charge sensor to the device to be measured is a necessity. However, this proximity also means that the operation of the device affects, in turn, the sensor tuning and ultimately the readout sensitivity. We present an approach for compensating for this cross-talk effect allowing for the gate voltages of the measured device to be swept in a 1 V x 1 V window while maintaining a sensor configuration chosen by a Bayesian optimiser. Our algorithm is a key contribution to the suite of fully automated solutions required for the operation of large quantum device architectures. |
| title | Automated long-range compensation of an rf quantum dot sensor |
| topic | Mesoscale and Nanoscale Physics Quantum Physics |
| url | https://arxiv.org/abs/2310.02135 |