A proposal of noise suppression for quantum annealing

• URL: http://arxiv.org/abs/2006.13440v1
• Date: Wed, 24 Jun 2020 03:05:01 GMT
• Title: A proposal of noise suppression for quantum annealing
• Authors: Takayuki Suzuki, Hiromichi Nakazato
• Abstract summary: Noise is one of the major obstacles to obtain an optimal solution in quantum annealers. We generalize the conventionally used Hamiltonian, i.e., the transverse field Hamiltonian, by introducing an ancillary system. We confirm numerically that the method is effective for a kind of noise usually encountered in the case of flux qubit.
• Score: 0.7310043452300736
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: A method to suppress noise, which is one of the major obstacles to obtain an optimal solution in quantum annealers, is proposed. We generalize the conventionally used Hamiltonian, i.e., the transverse field Hamiltonian, by introducing an ancillary system, which leads to cancellation of the effect of noise on the system under consideration for some typical cases. We also confirm numerically that the method is effective for a kind of noise usually encountered in the case of flux qubit.

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