3 papers
physics.optics2026
Sub-Rayleigh Imaging of Unequal-Intensity Sources: Near-Quantum-Limit Multiparameter Estimation
Y. Batuhan Yilmaz, Kent A. G. Bonsma-Fisher, Muhammad Mohid +3
In optical imaging, diffraction strongly degrades the performance of conventional intensity-based estimation once the separation between two sources is below the Rayleigh-Abbe limi…
quant-ph2026
Compressing Quantum Fisher Information
Rui Jie Tang, Jeremy Guenza Marcus, Noah Lupu-Gladstein +5
We show that the quantum Fisher information about any phase parameter encoded in a family of pure quantum states can be faithfully compressed into a single qubit, accompanied by a…
quant-ph2025
Spin coherence scale: operator-ordering sensitivity beyond the Heisenberg-Weyl group
Aaron Z. Goldberg, Andre J. Rodrigues, Y. Batuhan Yilmaz +2
We introduce the spin coherence scale as a measure of quantum coherence for spin systems, generalizing the quadrature coherence scale (QCS) previously defined for quadrature observ…