Swarm optimization for adaptive phase measurements with low visibility

Alexander J F Hayes*, Dominic W. Berry

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


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.

Original languageEnglish
Article number013838
Pages (from-to)1-8
Number of pages8
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Issue number1
Publication statusPublished - 27 Jan 2014


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