Data associated with "Resolving magnetic-sublevel structure in Rydberg Autler-Townes spectra with arbitrary RF polarization"
We investigate the role of magnetic sublevels in Autler–Townes spectra of Rydberg atoms driven by radio-frequency (RF) fields with arbitrary polarization. While conventional treatments predict two symmetric sidebands from independent $m_J$ transitions, experiments have reported additional unexplained spectral features. We show that these arise from elliptical RF polarization, which coherently couples multiple magnetic sublevels and requires a full multi-level treatment.
We develop and diagonalize a Hamiltonian including all coupled m_J sublevels, predicting polarization-dependent degeneracies that produce two, three, or four resolved peaks. Using long-wavelength transitions and an anechoic environment we realize homogeneous RF fields that for the first time enable complete resolution of the m_J-dependent dressed states. We observe excellent agreement with theory as the RF ellipticity is varied.
These results demonstrate that RF polarization fundamentally modifies Autler–Townes spectra and provide a consistent framework for interpreting magnetic-sublevel structure, with implications for Rydberg-based RF electrometry and polarimetry.
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Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | public |
| accrualPeriodicity | irregular |
| bureauCode |
[ "006:55" ] |
| contactPoint |
{ "fn": "Noah Schlossberger", "hasEmail": "mailto:noah.schlossberger@nist.gov" } |
| description | We investigate the role of magnetic sublevels in Autler–Townes spectra of Rydberg atoms driven by radio-frequency (RF) fields with arbitrary polarization. While conventional treatments predict two symmetric sidebands from independent $m_J$ transitions, experiments have reported additional unexplained spectral features. We show that these arise from elliptical RF polarization, which coherently couples multiple magnetic sublevels and requires a full multi-level treatment. We develop and diagonalize a Hamiltonian including all coupled m_J sublevels, predicting polarization-dependent degeneracies that produce two, three, or four resolved peaks. Using long-wavelength transitions and an anechoic environment we realize homogeneous RF fields that for the first time enable complete resolution of the m_J-dependent dressed states. We observe excellent agreement with theory as the RF ellipticity is varied. These results demonstrate that RF polarization fundamentally modifies Autler–Townes spectra and provide a consistent framework for interpreting magnetic-sublevel structure, with implications for Rydberg-based RF electrometry and polarimetry. |
| distribution |
[ { "title": "readme", "mediaType": "text/plain", "downloadURL": "https://data.nist.gov/od/ds/mds2-4157/4157_README.txt" }, { "title": "Figure 2", "mediaType": "text/csv", "downloadURL": "https://data.nist.gov/od/ds/mds2-4157/Fig2.csv" }, { "title": "Figure 3", "mediaType": "text/csv", "downloadURL": "https://data.nist.gov/od/ds/mds2-4157/Fig3.csv" }, { "title": "Figure 4", "mediaType": "text/csv", "downloadURL": "https://data.nist.gov/od/ds/mds2-4157/Fig4.csv" }, { "title": "Figure 5", "mediaType": "text/csv", "downloadURL": "https://data.nist.gov/od/ds/mds2-4157/Fig5.csv" } ] |
| identifier | ark:/88434/mds2-4157 |
| issued | 2026-07-23 |
| keyword |
[ "Rydberg atoms", "atomic physics", "electric field", "fields strength", "receivers", "volts/meter" ] |
| landingPage | https://data.nist.gov/od/id/mds2-4157 |
| language |
[ "en" ] |
| license | https://www.nist.gov/open/license |
| modified | 2026-04-13 00:00:00 |
| programCode |
[ "006:045" ] |
| publisher |
{ "name": "National Institute of Standards and Technology", "@type": "org:Organization" } |
| theme |
[ "Physics:Atomic, molecular, and quantum", "Physics:Spectroscopy" ] |
| title | Data associated with "Resolving magnetic-sublevel structure in Rydberg Autler-Townes spectra with arbitrary RF polarization" |
