Shuaibing Shao

collaborators

3 papers

math.NA2026

Uniform-in-time rational approximation of the matrix exponential with real poles

Stefan GÃ¼ttel, Shuai Shao

We propose two new approaches for constructing families of rational functions with shared real poles that nearly uniformly approximate the functions $exp (- t z)$ for $z \geq 0$ and $…

math.NA2026

Concentrated real-pole uniform-in-time approximation of the matrix exponential

Stefan GÃ¼ttel, Shuai Shao

We propose an asympotically optimal choice of shared concentrated real poles of a family of rational approximants of time-dependent exponential functions $exp (- t z)$ for $z \geq 0$ …

quant-ph2025

Classification of Small-size Quantum Secret Sharing Schemes using Uniform States

Xuhong Liu, Shuai Shao

We study the connection between quantum secret sharing (QSS) schemes and $k$ -uniform states of qubits beyond the equivalence between threshold QSS schemes and AME states. Specifica…