Author

Jing Bao

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Preprint Sep 2026

Optimal Quantum Junta Testing without Inverse Queries

We study the query complexity of testing quantum juntas. Given an unknown $n$-qubit unitary or quantum channel, the goal is to decide whether it acts nontrivially on at most $k$ qubits or is $\varepsilon$-far from every such operation. For unitaries, we consider the forward-only model, where the tester has access to $U...

Jing Bao, Minbo Gao, Peng-Hui Yao · 0 citations

Preprint Aug 2026

Towards Optimal Quantum Estimators for State Frame Potential

This work studies the problem of estimating the state frame potential of order $t$ to within additive error $\varepsilon$ under three progressively weaker access models: (i) query access to a multi-state-preparation oracle, (ii) general sample access, and (iii) single-copy sample access.

Jing Bao, Wang Fang, Y. Nakata et al. · 0 citations