SB-operator grouping with GHZ measurements reduces the measurement cost of VQE on sparse tight-binding Hamiltonians, demonstrated for perovskite band-gap calculations.
(4) and (6) clearly indicate the expectation value of a TB Hamiltonian having M nonzero elements can be estimated with O(2M ) circuits
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A variational quantum eigensolver tailored to multi-band tight-binding simulations of electronic structures
SB-operator grouping with GHZ measurements reduces the measurement cost of VQE on sparse tight-binding Hamiltonians, demonstrated for perovskite band-gap calculations.