Omar Al-Ghattas

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20232026

most citedCovariance Operator Estimation: Sparsity, Lengthscale, and Ensemble Kalman Filters

2 citations · 4 across the 7 of their papers we have counts for

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quant-ph2026

Beyond light cones: State preparation complexity in quantum spin glasses

Omar Al-Ghattas, David Gamarnik, Bobak T Kiani

We introduce a technique for studying state preparation complexity in the quantum $p$ -spin model on $n$ qubits, a disordered quantum spin system with random interactions on every s…

quant-ph2026

Circuit complexity lower bounds for quantum spin glasses

Omar Al-Ghattas, David Gamarnik

A central question in quantum information theory is the circuit complexity of states arising from standard many-body models. We study this question for quantum $p$ -spin glasses, ra…