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math.RA2026
Square matrices with integer eigenvalues under entry permutations
Shuming Cheng, Siran Zhang
We investigate the problem of which multisets of integer entries yield integer eigenvalues in every square matrix arrangement? Combining module reduction with a dyadic criterion fo…
quant-ph2026
Estimation of a sparse multi-qubit Hamiltonian via compressed sensing
Juntao Tu, Yuanlong Wang, Shuming Cheng +2
Hamiltonian estimation is an effective approach in studying the structure and dynamical evolution of quantum systems. The difficulty in estimating the Hamiltonian is that an -qu…
physics.optics2026
Intensity-guided pose-free pairwise registration for single-photon view fusion
Jinyi Liu, Lijun Liu, Shuming Cheng +3
Single-photon light detection and ranging (LiDAR) extends active three-dimensional sensing at the fundamental level and has found applications in extreme environments involving lon…