期刊
PHYSICAL REVIEW LETTERS
卷 107, 期 9, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.107.093003
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资金
- RFBR [11-02-00152-a]
- NSF
- University of Nevada, Reno
- Penn State
- Division Of Physics
- Direct For Mathematical & Physical Scien [969580] Funding Source: National Science Foundation
We show that optical spectroscopy of Rydberg states can provide accurate in situ thermometry at room temperature. Transitions from a metastable state to Rydberg states with principal quantum numbers of 25-30 have 200 times larger fractional frequency sensitivities to blackbody radiation than the strontium clock transition. We demonstrate that magic-wavelength lattices exist for both strontium and ytterbium transitions between the metastable and Rydberg states. Frequency measurements of Rydberg transitions with 10(-16) accuracy provide 10 mK resolution and yield a blackbody uncertainty for the clock transition of 10(-18).
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