Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Optical clock with ultracold neutral atoms.

G Wilpers1, T Binnewies, C Degenhardt

  • 1Physikalisch-Technische Bundesanstalt, Bundesalle 100, 38116 Braunschweig, Germany.

Physical Review Letters
|December 18, 2002
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

GdVO<sub>4</sub> Raman laser of Lorentzian linewidth less than 3 Hz.

Optics letters·2026
Same author

Comparing ultrastable lasers at 7 × 10<sup>-17</sup> fractional frequency instability through a 2220 km optical fibre network.

Nature communications·2022
Same author

Simple and compact diode laser system stabilized to Doppler-broadened iodine lines at 633  nm.

Applied optics·2020
Same author

Ultrastable Silicon Cavity in a Continuously Operating Closed-Cycle Cryostat at 4 K.

Physical review letters·2017
Same author

1.5  μm Lasers with Sub-10 mHz Linewidth.

Physical review letters·2017
Same author

Test of Special Relativity Using a Fiber Network of Optical Clocks.

Physical review letters·2017

We developed a neutral atom optical clock that rivals the accuracy of ion clocks and surpasses their stability. This advancement uses ultracold atoms to achieve a relative uncertainty below 10(-15).

Area of Science:

  • Atomic physics
  • Metrology
  • Quantum optics

Background:

  • Optical atomic clocks are crucial for fundamental physics and metrology.
  • Current leading clocks include single ion and neutral atom systems.
  • Improving clock stability and accuracy is an ongoing research goal.

Purpose of the Study:

  • To demonstrate a neutral atom optical clock with accuracy competitive with state-of-the-art single ion clocks.
  • To achieve superior stability compared to existing optical clock technologies.
  • To explore novel methods for laser stabilization using atom interferometry.

Main Methods:

  • Utilized ultracold neutral calcium (Ca) atoms in an optical frequency standard.
  • Employed atom interferometry for laser stabilization to the clock transition.

Related Experiment Videos

  • Achieved high visibility (0.36) atom interference, nearing the theoretical limit.
  • Applied a novel detection scheme to observe atom interferences.

    • Main Results:

    • Reduced the relative uncertainty of the optical clock to below 10(-15).
    • Observed atom interference visibility at 70% of the ultimate limit for stationary atoms.
    • Demonstrated potential for reaching the quantum projection noise limit.
    • Achieved exceptional instability of 4 x 10(-17) within 1 second.

    Conclusions:

    • Neutral atom optical clocks can achieve accuracy competitive with leading single ion clocks.
    • The demonstrated techniques offer a pathway to significantly enhance clock stability.
    • This work paves the way for next-generation optical clocks with unprecedented performance.