Daniel Ranard

activity

20172026

most citedDetermining a local Hamiltonian from a single eigenstate

142 citations · 342 across the 20 of their papers we have counts for

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quant-ph2025

The threshold for quantum-classical correspondence is $D \sim ℏ^{\frac{4}{3}}$

Felipe Hernández, Daniel Ranard, C. Jess Riedel

In chaotic quantum systems, an initially localized quantum state can deviate strongly from the corresponding classical phase-space distribution after the Ehrenfest time $t_{\mathrm…

quant-ph2025

Lower bounding the MaxCut of high girth 3-regular graphs using the QAOA

Edward Farhi, Sam Gutmann, Daniel Ranard +1

We study MaxCut on 3-regular graphs of minimum girth $g$ for various $g$ 's. We obtain new lower bounds on the maximum cut achievable in such graphs by analyzing the Quantum Approxi…

The threshold for quantum-classical correspondence is D∼ℏ34​

Lower bounding the MaxCut of high girth 3-regular graphs using the QAOA

The threshold for quantum-classical correspondence is $D \sim ℏ^{\frac{4}{3}}$