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Single-Spin Readout and Quantum Sensing Using Optomechanically Induced Transparency.

Martin Koppenhöfer1, Carl Padgett2, Jeffrey V Cady2,3

  • 1Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, USA.

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|March 17, 2023
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Summary
This summary is machine-generated.

We propose a new quantum sensing method using strain-coupled solid-state spin defects for faster single-shot spin readout. This approach, utilizing optomechanics, significantly reduces measurement times for diamond defects compared to optical methods.

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Area of Science:

  • Quantum sensing
  • Solid-state physics
  • Optomechanics

Background:

  • Solid-state spin defects are valuable quantum sensors.
  • Strain coupling in some defects offers new sensing possibilities.

Purpose of the Study:

  • To propose a novel strain-coupled readout scheme for solid-state spin defects.
  • To leverage optomechanically induced transparency for spin readout.
  • To investigate faster single-shot spin detection.

Main Methods:

  • Mechanically mediated dispersive readout.
  • Optomechanically induced transparency (OMIT) measurements.
  • Utilizing strain coupling of spin defects.

Main Results:

  • Demonstrated significantly reduced measurement times for single-shot spin readout of silicon-vacancy defects in diamond.
  • Achieved readout times an order of magnitude faster than conventional optical fluorescence methods.
  • Showcased potential for general parameter-estimation metrology with enhanced sensitivity.

Conclusions:

  • The proposed optomechanical readout scheme offers a faster and more sensitive method for single-shot spin detection.
  • This technique advances quantum sensing capabilities using solid-state spin defects.
  • The scheme is adaptable for various parameter-estimation tasks in metrology.