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Query: journal id: "physicalxreviewxletters"

AuthorsN.B. Lovett, C. Crosnier, M. Perarnau- Llobet, B. Sanders
TitleDifferential Evolution for Many-Particle Adaptive Quantum Metrology
JournalPhysical Review Letters
FacultyFaculty of Science
Institute/dept.FNWI: Institute for Theoretical Physics (ITF)
AbstractWe devise powerful algorithms based on differential evolution for adaptive many-particle quantum metrology. Our new approach delivers adaptive quantum metrology policies for feedback control that are orders-of-magnitude more efficient and surpass the few-dozen-particle limitation arising in methods based on particle-swarm optimization. We apply our method to the binary-decision-tree model for quantum-enhanced phase estimation as well as to a new problem: a decision tree for adaptive estimation of the unknown bias of a quantum coin in a quantum walk and show how this latter case can be realized experimentally.
Document typeArticle
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