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A hybrid quantum-classical Hamiltonian learning algorithm
Youle Wang, Guangxi Li, Xin Wang·March 1, 2021·DOI: 10.1007/s11432-021-3382-2
Computer SciencePhysics
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Abstract
This study develops a concrete near-term quantum algorithm for Hamiltonian learning and demonstrates its effectiveness. In particular, we show that learning the spectrum of Hamiltonians during the learning process could produce high-precision estimates of the target interaction coefficients. Our work may have applications in quantum device certification, quantum simulation, and quantum machine learning.