Practical Limits for Large-Momentum-Transfer Clock Atom Interferometers

Anno: 2022

Autori: Chiarotti M., Tinsley JN., Bandarupally S., Manzoor S., Sacco M., Salvi L., Poli N.

Affiliazione autori: Univ Firenze, Dipartimento Fis & Astron, Via G Sansone 1, I-50019 Sesto Fiorentino, Italy; Univ Firenze, LENS, Via G Sansone 1, I-50019 Sesto Fiorentino, Italy; INFN Sez Firenze, Sesto Fiorentino, Italy; CNR Sesto Fiorentino, INFN Sez Firenze, INO, Sesto Fiorentino, Italy.

Abstract: Atom interferometry on optical clock transitions is being pursued for numerous long-baseline exper-iments both terrestrially and for future space missions. Crucial to meeting the required sensitivities of these experiments is the implementation of large momentum transfer (> 103hk). Here, we show that to sequentially apply such a large momentum via pi 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 fundamen-tal 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 inter-ferometry on the 1S0-3P0 clock transitions of cadmium and strontium, operating at 332 nm and 698 nm, respectively.

Giornale/Rivista: PRX QUANTUM

Volume: 3 (3)      Da Pagina: 30348-1  A: 30348-10

Maggiori informazioni: We thank Grzegorz D. Pekala for assistance in estab- lishing the Cd clock -laser source. We thank Guglielmo M. Tino and Hidetoshi Katori for useful discussions and Michael Holynski for a critical reading of the manuscript. This work has been supported by the European Research Council under Grant No. 772126 (TICTOCGRAV) .
Parole chiavi: Frequency Stabilization; Laser; Sensitivity; Noise
DOI: 10.1103/PRXQuantum.3.030348

Citazioni: 8
dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2025-06-29
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