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Stabilizer Approximation III: Maximum Cut

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arxiv 2303.17215 v3 pith:ZI6A4ODM submitted 2023-03-30 quant-ph math.COmath.OC

classification quant-phmath.COmath.OC
keywords heuristicmaximumapproximationedge-contractionproblemstabilizerapplyapproaches
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abstract

We apply the stabilizer formalism to the Maximum Cut problem, and obtain a new greedy construction heuristic. It turns out to be an elegant synthesis of the edge-contraction and differencing edge-contraction approaches. Utilizing the relation between the Maximum Cut problem and the Ising model, the approximation ratio of the heuristic is easily found to be at least $1/2$. Moreover, numerical results show that the heuristic has very nice performance for graphs with about 100 vertices.

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  1. Improving stabilizer approximation with quantum strategy

    quant-ph 2024-12 conditional novelty 3.0 of 10

    A CHSH-game-inspired local rotation of the Pauli basis, applied qubit by qubit, improves the stabilizer approximation energy for two toy Hamiltonians.

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