217 citations · 1.3k across the 53 of their papers we have counts for
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quant-ph2026
Convex-Gaussianity of fermionic Gibbs states in perturbation theory
Kaifeng Bu, Yuanjie Ren
We study the structure of Gibbs states in weakly perturbed interacting fermionic systems. First, for a sparse Hamiltonian with a quadratic term and a non-quadratic…
quant-ph2026
Multivariate Decoded Quantum Interferometry for Weighted Optimization
Kaifeng Bu, Weichen Gu, Xiang Li
Decoded Quantum Interferometry (DQI) is a recently introduced quantum algorithm that reduces discrete optimization to decoding with potential advantages over the best-known polynom…
quant-ph2026
Hamiltonian Decoded Quantum Interferometry for General Pauli Hamiltonians
Kaifeng Bu, Weichen Gu, Xiang Li
In this work, we study the Hamiltonian Decoded Quantum Interferometry (HDQI) for the general Hamiltonians on an -qubit system, where the coefficients $c_i\in \m…