Permuting block-sparse MPS tensors to block-diagonal form and modifying real unitary synthesis reduces Toffoli cost by factors of 10-30 for molecular systems.
Ground State Preparation via Dynamical Cool- ing
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Faster matrix product state preparation by exploiting symmetry-induced block-sparsity
Permuting block-sparse MPS tensors to block-diagonal form and modifying real unitary synthesis reduces Toffoli cost by factors of 10-30 for molecular systems.