Practical Limits for Large-Momentum-Transfer Clock Atom Interferometers



Chiarotti, Mauro, Tinsley, Jonathan N ORCID: 0000-0002-4925-9350, Bandarupally, Satvika, Manzoor, Shamaila, Sacco, Michele, Salvi, Leonardo and Poli, Nicola
(2022) Practical Limits for Large-Momentum-Transfer Clock Atom Interferometers. PRX QUANTUM, 3 (3). 030348-.

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Abstract

Atom interferometry on optical clock transitions is being pursued for numerous long-baseline experiments both terrestrially and for future space missions. Crucial to meeting the required sensitivities of these experiments is the implementation of large momentum transfer (>103 k). Here, we show that to sequentially apply such a large momentum via π pulses places stringent requirements on the frequency noise of the interferometry laser and we find that the linewidth is required to be considerably lower than the previous estimate of approximately 10 Hz. This is due to imperfect pulse fidelity in the presence of noise and is apparent even for an atom at rest interacting with resonant light, making this a fundamental constraint on operational fidelity for a given laser and pulse sequence. Within this framework, we further present and analyze two high-power frequency-stabilized laser sources designed to perform interferometry on the 1S0-3P0 clock transitions of cadmium and strontium, operating at 332 nm and 698 nm, respectively.

Item Type: Article
Divisions: Faculty of Science and Engineering > School of Physical Sciences
Depositing User: Symplectic Admin
Date Deposited: 03 Oct 2023 16:12
Last Modified: 15 Mar 2024 09:17
DOI: 10.1103/PRXQuantum.3.030348
Open Access URL: https://doi.org/10.1103/PRXQuantum.3.030348
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URI: https://livrepository.liverpool.ac.uk/id/eprint/3173385