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quant-ph2023
Probing Quantum Efficiency: Exploring System Hardness in Electronic Ground State Energy Estimation
Seonghoon Choi, Ignacio Loaiza, Robert A. Lang +2
We consider the question of how correlated the system hardness is between classical algorithms of electronic structure theory in ground state estimation and quantum algorithms. To…
quant-ph2023
Block-Invariant Symmetry Shift: Preprocessing technique for second-quantized Hamiltonians to improve their decompositions to Linear Combination of Unitaries
Ignacio Loaiza, Artur F. Izmaylov
Computational cost of energy estimation for molecular electronic Hamiltonians via Quantum Phase Estimation (QPE) grows with the difference between the largest and smallest eigenval…