Trotter errors in XY-mixers scale with individual constraint size and locality rather than total problem size, making them superior to X-mixers for local constraints but inferior for global ones, with a new mixer proposed for TSP-like constraints.
Quantum supremacy through the quantum approximate optimization algorithm, 2019
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Constraint Preserving XY-Mixers under Trotterized Adiabatic Evolution
Trotter errors in XY-mixers scale with individual constraint size and locality rather than total problem size, making them superior to X-mixers for local constraints but inferior for global ones, with a new mixer proposed for TSP-like constraints.