Testing relativity in the lab with optical lattice atomic clocks

Shimon Kolkowitz; Xin Zheng; Jonathan Dolde; Hong Ming Lim; Nico Ranabhat

doi:10.1117/12.2657175

9 March 2023 Testing relativity in the lab with optical lattice atomic clocks

Shimon Kolkowitz, Xin Zheng, Jonathan Dolde, Hong Ming Lim, Nico Ranabhat

Proceedings Volume PC12447, Quantum Sensing, Imaging, and Precision Metrology; PC124470B (2023) https://doi.org/10.1117/12.2657175
Event: SPIE Quantum West, 2023, San Francisco, California, United States

Abstract

The remarkable precision of optical atomic clocks offers sensitivity to new and exotic physics through tests of relativity, searches for dark matter, gravitational wave detection, and probes for beyond Standard Model particles. We have recently realized a “multiplexed” strontium optical lattice clock consisting of two or more clocks in one vacuum chamber. In this talk I will explain the motivation, concept, and operating principles of our multiplexed optical lattice clock. I will then present recent experimental results in which we performed a novel, blinded, precision test of the gravitational redshift with an array of 5 evenly-spaced atomic ensembles spanning a total height difference of 1 cm. I will present the error budget produced from our systematic evaluation, and the recently unblinded results of our first test.Finally, I will discuss the outlook for future searches for new physics with our apparatus, including a novel direct test of the Einstein Equivalence Principle.

Conference Presentation

Citation Download Citation

Shimon Kolkowitz, Xin Zheng, Jonathan Dolde, Hong Ming Lim, and Nico Ranabhat "Testing relativity in the lab with optical lattice atomic clocks", Proc. SPIE PC12447, Quantum Sensing, Imaging, and Precision Metrology, PC124470B (9 March 2023); https://doi.org/10.1117/12.2657175

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