A resolvent-based hierarchical expansion reorganizes the self-energy of nonintegrable many-body systems into a closed, improvable continued-fraction plus multi-resolvent framework under ETH assumptions.
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Resolvent-Based Self-Consistent Framework with Hierarchical Correlation Expansion for Strongly Correlated Many-Body Systems
A resolvent-based hierarchical expansion reorganizes the self-energy of nonintegrable many-body systems into a closed, improvable continued-fraction plus multi-resolvent framework under ETH assumptions.