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quant-ph2020
Near-optimal ground state preparation
Lin Lin, Yu Tong
Preparing the ground state of a given Hamiltonian and estimating its ground energy are important but computationally hard tasks. However, given some additional information, these p…
quant-ph2019
Optimal polynomial based quantum eigenstate filtering with application to solving quantum linear systems
Lin Lin, Yu Tong
We present a quantum eigenstate filtering algorithm based on quantum signal processing (QSP) and minimax polynomials. The algorithm allows us to efficiently prepare a target eigens…