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quant-ph2026
Rényi Phase Transitions and Analytic Continuation to the von Neumann Entropy
Ayush Raj, Akash Vijay, Hong-Chen Jiang +1
Extracting operationally meaningful quantities such as von Neumann entropy and mutual information is central to characterizing many-body quantum systems, yet experiments and numeri…
quant-ph2025
Analytically Continuing the Randomized Measurement Toolbox
Akash Vijay, Ayush Raj, Jonah Kudler-Flam +3
We develop a framework for extracting non-polynomial analytic functions of density matrices in randomized measurement experiments by a method of analytical continuation. A central…