2 papers
quant-ph2025
Near-optimal performance of square-root measurement for general score functions and quantum ensembles
Hemant K. Mishra, Ludovico Lami, Mark M. Wilde
The Barnum-Knill theorem states that the optimal success probability in the multiple state discrimination task is not more than the square root of the success probability when the…
quant-ph2025
A Complete Characterization of Passive Unitary Normalizable (PUN) Gaussian States
Tiju Cherian John, Hemant K. Mishra, Saikat Guha
We provide a complete characterization of the class of multimode quantum Gaussian states that can be reduced to a tensor product of thermal states using only a passive unitary oper…