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quant-ph2026
Fisher-Informational Time: A Causal-Geometric Framework for Emergent Clock Time Physical Distinguishability
J. Sumaya-Martinez
We develop a Fisher-informational reformulation of physical time in which clock time is not regarded as a fundamental ontological substance, but as an emergent calibration of causa…
quant-ph2025
Quantum Fisher-information limits of resonant nanophotonic sensors: why high-Q is not optimal even at the quantum limit
J. Sumaya-Martinez
We develop a quantum metrological framework for resonant nanophotonic sensors based on subwavelength Fabry--Perot slit cavities. Building on classical Fisher-information analyses o…