Statistical time-domain characterization of non-periodic optical clocks

Dario Cilluffo

doi:10.22331/q-2022-07-14-764

Statistical time-domain characterization of non-periodic optical clocks

Institute of Theoretical Physics & IQST, Ulm University, Albert-Einstein-Allee 11 89081, Ulm, Germany
Universit$\grave{a}$ degli Studi di Palermo, Dipartimento di Fisica e Chimica - Emilio Segrè, via Archirafi 36, I-90123 Palermo, Italy

Published:	2022-07-14, volume 6, page 764
Eprint:	arXiv:2201.06548v2
Doi:	https://doi.org/10.22331/q-2022-07-14-764
Citation:	Quantum 6, 764 (2022).

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Abstract

Measuring time means counting the occurrence of periodic phenomena. Over the past centuries a major effort was put to make stable and precise oscillators to be used as clock regulators. Here we consider a different class of clocks based on stochastic clicking processes. We provide a rigorous statistical framework to study the performances of such devices and apply our results to a single coherently driven two-level atom under photodetection as an extreme example of non-periodic clock. Quantum Jump MonteCarlo simulations and photon counting waiting time distribution will provide independent checks on the main results.

Popular summary

Using a simplified optical model, we show that the large deviation formalism of quantum trajectories can be easily exploited to study the performances of a particular class of clocks relying on stochastic clicking processes. The proof of principle presented here provides a clear application of thermodynamics of quantum trajectories to practical problems and, at the same time, it suggests further connections with metrology.

► BibTeX data

@article{Cilluffo2022statisticaltime,
  doi = {10.22331/q-2022-07-14-764},
  url = {https://doi.org/10.22331/q-2022-07-14-764},
  title = {Statistical time-domain characterization of non-periodic optical clocks},
  author = {Cilluffo, Dario},
  journal = {{Quantum}},
  issn = {2521-327X},
  publisher = {{Verein zur F{\"{o}}rderung des Open Access Publizierens in den Quantenwissenschaften}},
  volume = {6},
  pages = {764},
  month = jul,
  year = {2022}
}

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