expressibility 1parameterized quantum circuits 1quantum hardware connectivity 1trainability 1variational quantum algorithms 1
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quant-ph2026
State-Dependent Visibility of Non-Commutative Ordering in Quantum Dynamics
Ji-Chong Yang, Gui-Qi Hu
A nonzero commutator proves that two orderings differ as operators, but it does not ensure that a physical state can reveal the difference. We ask when non-Abelian ordering informa…
quant-ph2026
Expressibility and trainability of a two-dimensional pairwise quantum-circuit ansatz
Shuai Zhang, Wei Liu, Ji-Chong Yang
The paper introduces a native two-dimensional pairwise parameterized quantum circuit ansatz and compares its expressibility and trainability to common one-dimensional ansatze on a…