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Rydberg electrometry for optical lattice clocks.

Bowden, W. and Hobson, R. and Huillery, P. and Gill, P. and Jones, M. P. A. and Hill, I. R. (2017) 'Rydberg electrometry for optical lattice clocks.', Physical review A., 96 (2). 023419.


Electrometry is performed using Rydberg states to evaluate the quadratic Stark shift of the 5s2 1 S0-5s5p 3 P0 clock transition in strontium. By measuring the Stark shift of the highly excited 5s75d 1 D2 state using electromagnetically induced transparency, we characterize the electric field with sufficient precision to provide tight constraints on the systematic shift to the clock transition. Using the theoretically derived, and experimentally verified, polarizability for this Rydberg state, we can measure the residual field with an uncertainty well below 1Vm−1. This resolution allows us to constrain the fractional frequency uncertainty of the quadratic Stark shift of the clock transition to 2×10−20.

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Publisher statement:Reprinted with permission from the American Physical Society: Bowden, W., Hobson, R., Huillery, P., Gill, P., Jones, M. P. A. & Hill, I. R. (2017). Rydberg electrometry for optical lattice clocks. Physical Review A 96(2): 023419 © 2017 by the American Physical Society. Readers may view, browse, and/or download material for temporary copying purposes only, provided these uses are for noncommercial personal purposes. Except as provided by law, this material may not be further reproduced, distributed, transmitted, modified, adapted, performed, displayed, published, or sold in whole or part, without prior written permission from the American Physical Society.
Date accepted:08 June 2017
Date deposited:20 September 2017
Date of first online publication:22 August 2017
Date first made open access:No date available

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