Improving Stabilizer Approximation with Quantum Strategy

2025 · doi:10.32388/0ig29y.2
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Abstract

We introduce a quantum strategy from nonlocal games to improve the stabilizer approximation we proposed previously. The resulting approach turns out to be a qubit-by-qubit gauging procedure for standard stabilizers, which could involve discrete or continuous gauge parameters. We take examples from many-body physics and quantum chemistry to show such a procedure leads to an improvement of the performance.
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License: CC-BY-4.0