arXiv Machine Learning
Aug 12

The Exact Replica Threshold for Nonlinear Moments of Quantum States

arXiv:2604. 22627v2 Announce Type: replace-cross Abstract: Joint measurements on multiple copies of a quantum state provide access to nonlinear observables such as $\operatorname{tr}(\rho^t)$, but whether replica number marks a sharp information-theoretic resource boundary has remained unclear.

By Shuai Zeng