2 papers
quant-ph2026
Saturating the Bayesian Nagaoka-Hayashi bound within numerical precision for the depolarization SU(2) rotation channel
Leo Bia, Christos N. Gagatsos
The Bayesian Nagaoka--Hayashi (NH) bound is a semidefinite lower bound on the Bayes risk of multiparameter estimation, tighter than the Bayesian symmertic logarithmic derivative (S…
quant-ph2025
Bayesian Greedy Receiver for Pulse Position Modulation without an Error Floor under Thermal Noise
Leo Bia, Christos N. Gagatsos, Saikat Guha
We investigate quantum receiver architectures for demodulation -ary Pulse Position Modulation under thermal noise and photon-starved conditions. Building on the greed receiver f…