High-Accuracy Optical Clock via Three-Level Coherence in Neutral Bosonic {sup 88}Sr

Journal Article · Fri May 06 00:00:00 EDT 2005 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.94.173002· OSTI ID:20696235

Santra, Robin ^[1]; Arimondo, Ennio ^[1]; Ido, Tetsuya; Greene, Chris H; Ye, Jun ^[1]

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1. JILA, National Institute of Standards and Technology and University of Colorado, Department of Physics, University of Colorado, Boulder, Colorado 80309-0440 (United States)

An optical atomic clock scheme is proposed that utilizes two lasers to establish coherent coupling between the 5s{sup 2} {sup 1}S{sub 0} ground state of {sup 88}Sr and the first excited state, 5s5p {sup 3}P{sub 0}. The coupling is mediated by the broad 5s5p {sup 1}P{sub 1} state, exploiting the phenomenon of electromagnetically induced transparency. The effective linewidth of the clock transition can be chosen at will by adjusting the laser intensity. By trapping the {sup 88}Sr atoms in an optical lattice, long interaction times with the two lasers are ensured; Doppler and recoil effects are eliminated. Based on a careful analysis of systematic errors, a clock accuracy of better than 2x10{sup -17} is expected.

• OSTI ID: 20696235
• Journal Information: Physical Review Letters, Vol. 94, Issue 17; Other Information: DOI: 10.1103/PhysRevLett.94.173002; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ACCURACY
ATOMIC CLOCKS
COUPLING
ERRORS
EXCITED STATES
GROUND STATES
MEASURING METHODS
STRONTIUM 88
TIME MEASUREMENT
TRAPPING