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Quantum annealing with a nonvanishing final value of the transverse field
Kohji Nishimura, Hidetoshi Nishimori
We study the problem to infer the original ground state of a spin-glass Hamiltonian out of the information from the Hamiltonian with interactions deviated from the original ones. O…
Exact expression of the energy gap at first-order quantum phase transitions of a non-stoquastic Hamiltonian
Masaki Ohkuwa, Hidetoshi Nishimori
We study the energy gap between the ground state and the first excited state of a mean-field-type non-stoquastic Hamiltonian by a semi-classical analysis. The fully connected mean-…
Direct comparison of quantum and simulated annealing on a fully-connected Ising ferromagnet
Matteo M. Wauters, Rosario Fazio, Hidetoshi Nishimori +1
We compare the performance of quantum annealing (QA, through Schrödinger dynamics) and simulated annealing (SA, through a classical master equation) on the -spin infinite range…