Coupling atoms to cavities using narrow linewidth optical transitions: applications to frequency metrology

Norcia, Matthew A.

doi:10.1088/1361-6455/ab3930

Cited by 4 publications

(3 citation statements)

References 99 publications

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“…Concerning systematics, AOCs provide fully siteresolved evaluation combined with an essential mitigation of interaction shifts, while being ready-made for implementing local thermometry using Rydberg states [14] in order to more precisely determine black-body induced shifts [1]. In addition, AOCs offer an advanced toolset for generation and detection of entanglement to reach beyond standard quantum limit operation -either through cavities [16,45] or Rydberg excitation [15] -and for implementing quantum clock networks [19]. Further, the demonstrated techniques provide a pathway for quantum computing and communication with neutral alkalineearth-like atoms [8,20,22].…”

Section: Discussionmentioning

confidence: 99%

An Atomic-Array Optical Clock with Single-Atom Readout

et al. 2019

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Currently, the most accurate and stable clocks use optical interrogation of either a single ion or an ensemble of neutral atoms confined in an optical lattice. Here, we demonstrate a new optical clock system based on an array of individually trapped neutral atoms with single-atom readout, merging many of the benefits of ion and lattice clocks as well as creating a bridge to recently developed techniques in quantum simulation and computing with neutral atoms. We evaluate singlesite resolved frequency shifts and short-term stability via self-comparison. Atom-by-atom feedback control enables direct experimental estimation of laser noise contributions. Results agree well with an ab initio Monte Carlo simulation that incorporates finite temperature, projective read-out, laser noise, and feedback dynamics. Our approach, based on a tweezer array, also suppresses interaction shifts while retaining a short dead time, all in a comparatively simple experimental setup suited for transportable operation. These results establish the foundations for a third optical clock platform and provide a novel starting point for entanglement-enhanced metrology, quantum clock networks, and applications in quantum computing and communication with individual neutral atoms that require optical clock state control.

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Section: Discussionmentioning

confidence: 99%

An Atomic-Array Optical Clock with Single-Atom Readout

et al. 2019

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show abstract

“…Concerning systematics, AOCs provide fully siteresolved evaluation combined with an essential mitigation of interaction shifts while being ready-made for implementing local thermometry using Rydberg states [14] in order to more precisely determine blackbody-induced shifts [1]. In addition, AOCs offer an advanced toolset for generation and detection of entanglement to reach beyond standard quantum limit operation-either through cavities [16,46] or Rydberg excitation [15]-and for implementing quantum clock networks [19]. Furthermore, the demonstrated techniques provide a pathway for quantum computing and communication with neutral alkaline-earth-like atoms [8,20,22].…”

Section: Discussionmentioning

confidence: 99%

“Tweezer Clock” Offers New Possibilities in Timekeeping

Ludlow

2019

Physics

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Currently, the most accurate and stable clocks use optical interrogation of either a single ion or an ensemble of neutral atoms confined in an optical lattice. Here, we demonstrate a new optical clock system based on an array of individually trapped neutral atoms with single-atom readout, merging many of the benefits of ion and lattice clocks as well as creating a bridge to recently developed techniques in quantum simulation and computing with neutral atoms. We evaluate single-site-resolved frequency shifts and shortterm stability via self-comparison. Atom-by-atom feedback control enables direct experimental estimation of laser noise contributions. Results agree well with an ab initio Monte Carlo simulation that incorporates finite temperature, projective readout, laser noise, and feedback dynamics. Our approach, based on a tweezer array, also suppresses interaction shifts while retaining a short dead time, all in a comparatively simple experimental setup suited for transportable operation. These results establish the foundations for a third optical clock platform and provide a novel starting point for entanglement-enhanced metrology, quantum clock networks, and applications in quantum computing and communication with individual neutral atoms that require optical-clock-state control.

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“…The prospect for a continuous superradiant laser, in which an ensemble of atoms continuously and cooperatively emits light in a cavity mode [1], has attracted attention because of the fundamental interest in cavity quantum electrodynamics and open quantum many-body systems [2], and because of potential metrological applications [3,4]. Indeed, these lasers operate deep in the bad-cavity limit, such that the frequency of the laser is only very weakly sensitive to mirror vibrations, and is instead mainly set by the natural frequency of the atomic transition.…”

Section: Introductionmentioning

confidence: 99%

Correlations and linewidth of the atomic beam continuous superradiant laser

et al. 2023

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We propose a minimalistic model to account for the main properties of a continuous superradiant laser, in which a beam of atoms crosses the mode of a high-finesse Fabry-Perot cavity, and collectively emits light into the cavity mode. We focus on the case of weak single atom - cavity cooperativity, and highlight the relevant regime where decoherence due to the finite transit time dominates over spontaneous emission. We propose an original approach where the dynamics of atoms entering and leaving the cavity is described by a Hamiltonian process. This allows deriving the main dynamical equations for the superradiant laser, without the need for a stochastic approach. We derive analytical conditions for a sustained emission and show that the ultimate linewidth is set by the fundamental quantum fluctuations of the collective atomic dipole. We calculate steady-state values of the two-body correlators and show that the continuous superradiant regime is tied to the growth of atom-atom correlations, although these correlations only have a small impact on the laser linewidth.

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Coupling atoms to cavities using narrow linewidth optical transitions: applications to frequency metrology

Cited by 4 publications

References 99 publications

An Atomic-Array Optical Clock with Single-Atom Readout

An Atomic-Array Optical Clock with Single-Atom Readout

“Tweezer Clock” Offers New Possibilities in Timekeeping

Correlations and linewidth of the atomic beam continuous superradiant laser

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