3 papers
quant-ph2026
Complementary Quantum Correlations Are Universal for Qubits
Jinbo Wang, Qihang Wang, Kun Chen
Extracting total correlations from a quantum system usually requires reconstructing its state, whereas many experiments access only a few measurement settings. A possible shortcut…
quant-ph2026
When Complementary Measurements Count the Same Classical Bit Twice: Counterexamples to CQC, ECQC, and Complementarity-Based Certification
Jinbo Wang, Qihang Wang, Kun Chen
Mutually unbiased measurements are commonly expected to expose independent facets of a quantum state: a correlation that is classical in one basis should disappear in a complementa…
math.CV2026
Residual bounds for Schur-stable polynomials
Xiaojun Tan, Qihang Wang, Wei Huang +1
Let be the infimum of \[ \frac{\lVert P'-P'(0)P\rVert_{H^2}}{\lVert P\rVert_{H^2}} \] over all degree- polynomials satisfying whose zeros lie in the closed un…