1 citations · 1 across the 12 of their papers we have counts for
16 papers
A Generalized Stein Lemma for Quantum Channels
Minbo Gao, Zhengfeng Ji, Chenghua Liu
We prove a generalized quantum Stein lemma for parallel discrimination of an arbitrary finite-dimensional channel against families of alternative channels. The alternatives are com…
Optimal Covariance Inflation under Gaussian Tilts
Minbo Gao, Zhengfeng Ji, Chenghua Liu
Covariance-sensitive analyses of Gaussian annealing for sampling from a convex body require controlling how much covariance can grow under a radial Gaussian tilt. For an isotropic…
Quantum Query Advantage Requires Space
Minbo Gao, Zhengfeng Ji, Ziyi Xie
Hao, Huang, and Liu (STOC'26) recently showed that optimal quantum query complexity may require large workspace even for short-output problems, and asked whether a quantum query ad…
Gate-Efficient Implementation of the Query-Optimal Time-Dependent Hamiltonian Simulation
Boyang Chen, Minbo Gao, Zhengfeng Ji +3
The query-optimal algorithm of [CGWZ26] for general time-dependent Hamiltonian simulation uses $$ q = O\left( αT + \frac{\log(1/\varepsilon)}{\log\left(e + \log(1/\varepsilon)/(αT)…
Quantum Speedups for Log-Concave Sampling from Local Structure
Chenghua Liu, Qisheng Wang, Zhengfeng Ji
For a convex function , the problem of sampling from a distribution proportional to is called log-concave sampling. In many practi…
No-Go Theorems for Quantum Transport Metrics from Fixed Cost Operators
Minbo Gao, Zhengfeng Ji, Tianshi Yu
Coupling-based quantum optimal transport generalizes classical optimal transport by representing transport plans as bipartite states with prescribed marginals and evaluating their…