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quant-ph2026
SYK thermal expectations are classically easy at any temperature
Alexander Zlokapa, Bobak T. Kiani
Estimating thermal expectations of local observables is a natural target for quantum advantage. We give a simple classical algorithm that approximates thermal expectations for Gibb…
quant-ph2024★ 12 cited
Hamiltonian simulation for low-energy states with optimal time dependence
Alexander Zlokapa, Rolando D. Somma
We consider the task of simulating time evolution under a Hamiltonian within its low-energy subspace. Assuming access to a block-encoding of for some $E \in \mathb…