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quant-ph2026
A reduction scheme for general-order Ising-like Hamiltonians in quantum heuristic solvers
Chengsi Mao, Pavel Mosharev, Yao Wang +1
The Ising model is ubiquitous in various optimization problems but notoriously difficult to solve due to combinatorial explosion. In view of this, Hamiltonian reduction is a useful…
quant-ph2025
Qudit Shadow Estimation Based on the Clifford Group and the Power of a Single Magic Gate
Chengsi Mao, Changhao Yi, Huangjun Zhu
Shadow estimation is a sample-efficient protocol for learning the properties of a quantum system using randomized measurements, but the current understanding of qudit shadow estima…
quant-ph2024
Third moments of qudit Clifford orbits and 3-designs based on magic orbits
Huangjun Zhu, Chengsi Mao, Changhao Yi
When the local dimension is an odd prime, the qudit Clifford group is only a 2-design, but not a 3-design, unlike the qubit counterpart. This distinction and its extension to C…