3 papers
physics.optics2025
Enhanced interferometric resolution via N-fold intensity-product measurements without sacrificing phase sensitivity
S. Kim, J. Stohr, B. S. Ham
The Fisher information theory sets a fundamental bound on the minimum measurement error achievable from independent and identically distributed (i.i.d.) measurement events. The ass…
quant-ph2024
A superresolution-enhanced spectrometer beyond the Cramer-Rao bound in phase sensitivity
Byoung S. Ham
Precision measurement has been an important research area in sensing and metrology. In classical physics, the Fisher information determines the maximum extractable information from…
quant-ph2024
Coherence spectroscopy by the Nth power of the measured signal in an interferometer overcoming the diffraction limit
Byoung S. Ham
Coherence spectroscopy has been intensively studied over the last several decades for various applications in science and engineering. The Rayleigh criterion defines the resolution…