R. Somma

activity

20092026

most citedQuantum error correction below the surface code threshold

702 citations · 786 across the 12 of their papers we have counts for

collaborators

Showing 2026 · quant-phShow all

3 papers · 2 filters

quant-ph2026

Optimal Ground-State Preparation with a Guiding State

Stacey Jeffery, Rolando D. Somma, Freek Witteveen +1

Suppose a Hamiltonian $H$ has a unique ground state $∣ ψ_{0} ⟩$ with an eigenvalue $E_{0}$ , and we have an estimate $E ~_{0}$ such that $∣ E ~_{0} - E_{0} ∣ \leq δ$ , and there is a…

quant-ph2026

Efficient quantum algorithm for linear matrix differential equations and applications to open quantum systems

Sophia Simon, Dominic W. Berry, Rolando D. Somma

We present an efficient, nearly optimal quantum algorithm for solving linear matrix differential equations, with applications to the simulation of open quantum systems and beyond.…

quant-ph2026

Efficient quantum circuits for high-dimensional representations of SU(n) and Ramanujan quantum expanders

Vishnu Iyer, Siddhartha Jain, Stephen Jordan +1

We present efficient quantum circuits that implement high-dimensional unitary irreducible representations (irreps) of $S U (n)$ , where $n \geq 2$ is constant. For dimension $N$ and er…