Jul 17 – 22, 2022
Royal Conservatory of Music, Toronto
America/Toronto timezone

A transportable Yb optical lattice clock

Jul 20, 2022, 5:00 PM
1h 30m
Hart House (Hart House)

Hart House

Hart House

7 Hart House Cir, Toronto, ON M5S 3H3
Poster presentation Precision measurement and tests of fundamental physics Poster session

Description

Optical lattice clocks have demonstrated fractional uncertainty and instability at the $10^{-18}$ level and beyond. At this performance level, such systems become useful for applications including tests of general relativity, searches for dark matter, time-resolved measurements of geophysical phenomena such as Earth tides, and remote comparisons between distant metrological institutes. However, these systems typically span one or more rooms and are staffed by several experts during clock operation. We present a transportable Yb optical lattice clock which occupies only approximately 1000L and seeks to achieve high autonomous uptime through a suite of advanced controls systems. Preliminary comparisons against a laboratory clock demonstrate an instability near $10^{-17}$ at 1000 seconds. Several key systematics for transportable operation have been analyzed at the $10^{-18}$ uncertainty level, and a full uncertainty budget will be completed in 2023. We highlight several upcoming applications including a possible test of general relativity on a >4000 m mountain summit using two-way optical time and frequency transfer to compare with laboratory clocks at NIST.

Presenter name Robert Fasano
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Primary authors

Robert Fasano (National Institute of Standards and Technology, CU Boulder) Wesley Brand (National Institute of Standards and Technology, CU Boulder) Tobias Bothwell (National Institute of Standards and Technology) Yun-Jhih Chen (JPL) Richard Fox (National Institute of Standards and Technology) Andrew Ludlow (National Institute of Standards and Technology, CU Boulder)

Presentation materials

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