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Error-Mitigated Digital Quantum Simulation.
Sam McArdle, Xiao Yuan, S. Benjamin·July 6, 2018·DOI: 10.1103/PhysRevLett.122.180501
PhysicsComputer ScienceMedicine
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Abstract
Variational algorithms may enable classically intractable simulations on near-future quantum computers. However, their potential is limited by hardware errors. It is therefore crucial to develop efficient ways to mitigate these errors. Here, we propose a stabilizerlike method which enables the detection of up to 60%-80% of depolarizing errors. Our method is suitable for near-term quantum hardware. Simulations show that our method can significantly benefit calculations subject to both stochastic and correlated noise, especially when combined with existing error mitigation techniques.