Author

R. de Wolf

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Preprint Sep 2026

Optimal Ground-State Preparation with a Guiding State

Suppose a Hamiltonian $H$ has a unique ground state $|\psi_0\rangle$ with an eigenvalue $E_0$, and we have an estimate $\tilde{E}_0$ such that $|\tilde{E}_0-E_0|\leq\delta$, and there is a gap of at least $3\delta$ between $E_0$ and all other eigenvalues. Suppose we have a unitary $A$ available that can produce a"guidi...

Stacey Jeffery, R. Somma, F. Witteveen et al. · 3 citations

Preprint Jul 2026

Exponential Advantage of Multipartite Entanglement over Quantum Communication with Applications to Bounded-Storage Cryptography

We establish an exponential communication advantage enabled by multipartite quantum entanglement. Building on the bipartite Hidden Matching problem, we introduce a communication task involving multiple spatially separated senders and a single receiver. We show that a shared Greenberger-Horne-Zeilinger state enables com...

Ananya Chakraborty, Manik Banik, R. de Wolf · 3 citations