Swarm optimization for adaptive phase measurements with low visibility

2013/11/13 by Alexander J. F. Hayes, Dominic W. Berry · 1 citation
Materials Science · Physics and Astronomy · #Atomic and Subatomic Physics Research #Diamond and Carbon-based Materials Research #Laser-Matter Interactions and Applications #quant-ph

paper · pdf · doi:10.1103/physreva.89.013838

published as Phys. Rev. A 89, 013838 (2014) · 8 pages, 7 figures, comments welcome

arxiv created 2013/11/13 · openalex publication_date 2014/01/27 · arxiv updated 2014/01/29 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Adaptive feedback normally provides the greatest accuracy for optical phase measurements. New advances in nitrogen-vacancy-center technology have enabled magnetometry via individual spin measurements, which are similar to optical phase measurements but with low visibility. The adaptive measurements that previously worked well with high-visibility optical interferometry break down and give poor results for nitrogen-vacancy-center measurements. We use advanced search techniques based on swarm optimization to design better adaptive measurements that can provide improved measurement accuracy with low-visibility interferometry, with applications in nitrogen-vacancy-center magnetometry.

Citations

• Quantum-enhanced measurements: beating the standard quantum limit
• Machine Learning for Precise Quantum Measurement
• Adaptive Optical Phase Estimation Using Time-Symmetric Quantum Smoothing

Cited by

• Adaptive quantum computation in changing environments using projective simulation

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