Author

Yulong Dong

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#machine learning Preprint Sep 2026

Quantum score matching with applications to learning thermal states

This work establishes a general quantum score-matching framework with end-to-end theoretical guarantees for quantum states and achieves information-theoretically optimal sample complexity in the high-temperature regime for Hamiltonians with bounded locality and interaction degree.

Yu-Long Dong, Jia-Qi Leng · 0 citations

#software testing Preprint Aug 2026

Constrained minimax approximation for quantum signal processing

This work introduces nonlinear Fourier retraction, which uses QSP completion and phase synthesis to turn a nearly feasible polynomial into phase factors for a feasible QSP polynomial without increasing the degree.

Yu-Long Dong, James B. Larsen, Lin Lin et al. · 0 citations