Direct control of high magnetic fields for cold atom experiments based on NV centers
In ultracold quantum gases, the interactions between the individual atoms can be controlled by applying magnetic bias fields. As magnetic field fluctuations limit the precision here, typically a feedback loop needs to be employed to regulate the current through a pair of Helmholtz coils. No commerci...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing
2021-01-01
|
| Series: | New Journal of Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/1367-2630/abe1e5 |
| _version_ | 1797750237396205568 |
|---|---|
| author | Alexander Hesse Kerim Köster Jakob Steiner Julia Michl Vadim Vorobyov Durga Dasari Jörg Wrachtrup Fred Jendrzejewski |
| author_facet | Alexander Hesse Kerim Köster Jakob Steiner Julia Michl Vadim Vorobyov Durga Dasari Jörg Wrachtrup Fred Jendrzejewski |
| author_sort | Alexander Hesse |
| collection | DOAJ |
| description | In ultracold quantum gases, the interactions between the individual atoms can be controlled by applying magnetic bias fields. As magnetic field fluctuations limit the precision here, typically a feedback loop needs to be employed to regulate the current through a pair of Helmholtz coils. No commercially available magnetic field sensor allows to measure large fields directly with high enough precision, leading to many unsatisfactory solutions being used in experiments. Here, we demonstrate a direct magnetic field stabilization in a regime previously not accessible, using NV centers as the magnetic field sensor. This allows us to measure and stabilize fields of 4.66 mT down to 12 nT RMS noise over the course of 24 h, measured on a 1 Hz bandwidth. We achieve a control of better than 1 ppm after 20 min of integration time, ensuring high long-term stability for experiments. This approach extends direct magnetic field control to strong magnetic fields, which could enable new precise quantum simulations in this regime. |
| first_indexed | 2024-03-12T16:30:49Z |
| format | Article |
| id | doaj.art-b811d988b219415c855c58aba9faad51 |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:30:49Z |
| publishDate | 2021-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-b811d988b219415c855c58aba9faad512023-08-08T15:32:29ZengIOP PublishingNew Journal of Physics1367-26302021-01-0123202303710.1088/1367-2630/abe1e5Direct control of high magnetic fields for cold atom experiments based on NV centersAlexander Hesse0https://orcid.org/0000-0001-5604-0480Kerim Köster1Jakob Steiner2Julia Michl3https://orcid.org/0000-0002-9219-1400Vadim Vorobyov4https://orcid.org/0000-0002-6784-4932Durga Dasari5Jörg Wrachtrup6Fred Jendrzejewski7https://orcid.org/0000-0003-1488-7901Kirchhoff-Institut für Physik , Im Neuenheimer Feld 227, 69120 Heidelberg, GermanyKirchhoff-Institut für Physik , Im Neuenheimer Feld 227, 69120 Heidelberg, Germany3. Physikalisches Institut , Center for Applied Quantum Technologies, IQST , Pfaffenwaldring 57, 70569 Stuttgart, Germany; Paul-Scherrer-Institute , 5323 Villigen, Switzerland3. Physikalisches Institut , Center for Applied Quantum Technologies, IQST , Pfaffenwaldring 57, 70569 Stuttgart, Germany3. Physikalisches Institut , Center for Applied Quantum Technologies, IQST , Pfaffenwaldring 57, 70569 Stuttgart, Germany3. Physikalisches Institut , Center for Applied Quantum Technologies, IQST , Pfaffenwaldring 57, 70569 Stuttgart, Germany3. Physikalisches Institut , Center for Applied Quantum Technologies, IQST , Pfaffenwaldring 57, 70569 Stuttgart, Germany; Max Planck Institute for Solid State Research , Heisenbergstraße 1, 70569 Stuttgart, GermanyKirchhoff-Institut für Physik , Im Neuenheimer Feld 227, 69120 Heidelberg, GermanyIn ultracold quantum gases, the interactions between the individual atoms can be controlled by applying magnetic bias fields. As magnetic field fluctuations limit the precision here, typically a feedback loop needs to be employed to regulate the current through a pair of Helmholtz coils. No commercially available magnetic field sensor allows to measure large fields directly with high enough precision, leading to many unsatisfactory solutions being used in experiments. Here, we demonstrate a direct magnetic field stabilization in a regime previously not accessible, using NV centers as the magnetic field sensor. This allows us to measure and stabilize fields of 4.66 mT down to 12 nT RMS noise over the course of 24 h, measured on a 1 Hz bandwidth. We achieve a control of better than 1 ppm after 20 min of integration time, ensuring high long-term stability for experiments. This approach extends direct magnetic field control to strong magnetic fields, which could enable new precise quantum simulations in this regime.https://doi.org/10.1088/1367-2630/abe1e5NV center magnetometryultracold quantum gasesmagnetic field stabilization |
| spellingShingle | Alexander Hesse Kerim Köster Jakob Steiner Julia Michl Vadim Vorobyov Durga Dasari Jörg Wrachtrup Fred Jendrzejewski Direct control of high magnetic fields for cold atom experiments based on NV centers New Journal of Physics NV center magnetometry ultracold quantum gases magnetic field stabilization |
| title | Direct control of high magnetic fields for cold atom experiments based on NV centers |
| title_full | Direct control of high magnetic fields for cold atom experiments based on NV centers |
| title_fullStr | Direct control of high magnetic fields for cold atom experiments based on NV centers |
| title_full_unstemmed | Direct control of high magnetic fields for cold atom experiments based on NV centers |
| title_short | Direct control of high magnetic fields for cold atom experiments based on NV centers |
| title_sort | direct control of high magnetic fields for cold atom experiments based on nv centers |
| topic | NV center magnetometry ultracold quantum gases magnetic field stabilization |
| url | https://doi.org/10.1088/1367-2630/abe1e5 |
| work_keys_str_mv | AT alexanderhesse directcontrolofhighmagneticfieldsforcoldatomexperimentsbasedonnvcenters AT kerimkoster directcontrolofhighmagneticfieldsforcoldatomexperimentsbasedonnvcenters AT jakobsteiner directcontrolofhighmagneticfieldsforcoldatomexperimentsbasedonnvcenters AT juliamichl directcontrolofhighmagneticfieldsforcoldatomexperimentsbasedonnvcenters AT vadimvorobyov directcontrolofhighmagneticfieldsforcoldatomexperimentsbasedonnvcenters AT durgadasari directcontrolofhighmagneticfieldsforcoldatomexperimentsbasedonnvcenters AT jorgwrachtrup directcontrolofhighmagneticfieldsforcoldatomexperimentsbasedonnvcenters AT fredjendrzejewski directcontrolofhighmagneticfieldsforcoldatomexperimentsbasedonnvcenters |