White: density-matrix formulation for quantum renormalization groups

What changed

Introduced density-matrix truncation for real-space quantum renormalization and showed strong chain results.

Scientific scope

The record is White's sole-author 1992 Physical Review Letters paper. Its optimality statement is in the paper's stated sense and examples; it does not absorb Wilson's renormalization group, White and Noack's precursor work or later tensor-network developments.

Evidence

The linked sources identify this contribution and its scope. WRS has not independently reconstructed the scientific claims. The record is White's sole-author 1992 Physical Review Letters paper. Its optimality statement is in the paper's stated sense and examples; it does not absorb Wilson's renormalization group, White and Noack's precursor work or later tensor-network developments.

Contributors

• Steven R. White · SCIENCE: Named source author of the scoped work; individual effort shares are not measured.

• APS page and full text for density-matrix renormalization
• PubMed record for White density-matrix paper

Provisional WRS assessment, edition 2026-10-16.1. Independent expert calibration is pending. This grade does not certify correctness or assign ownership.

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