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This study introduces interleaved operation for cold-atom gyroscopes, enhancing sampling rates and sensitivity for inertial sensing. This advancement improves vibration noise averaging and dynamic rotation measurements.

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Area of Science:

  • Atomic physics
  • Inertial sensing
  • Quantum technologies

Background:

  • Cold-atom sensors are crucial for navigation, geoscience, and fundamental physics.
  • High sampling rates and sensitivity are challenging due to long interrogation times.

Purpose of the Study:

  • To report on the interleaved operation of a cold-atom gyroscope.
  • To demonstrate improved performance for dynamic rotation measurements.

Main Methods:

  • Simultaneous interrogation of three atomic clouds in an atom interferometer.
  • Utilizing an interleaved operation strategy.
  • Achieving a sampling rate of 3.75 Hz and an interrogation time of 801 ms.

Main Results:

  • Demonstrated a stability of 3 × 10-10 rad s-1, competitive with fiber-optic gyroscopes.
  • Efficiently averaged vibration noise.
  • Enabled dynamic rotation measurements in an unexplored range.

Conclusions:

  • Interleaving is a key concept for future atom-interferometry sensors.
  • Validated for probing time-varying signals in navigation, gravity gradiometry, dark matter, and gravitational wave detection.