{"doi":"10.1103/physrevlett.69.2863","title":"Density matrix formulation for quantum renormalization groups","abstract":"A generalization of the numerical renormalization-group procedure used first by Wilson for the Kondo problem is presented. It is shown that this formulation is optimal in a certain sense. As a demonstration of the effectiveness of this approach, results from numerical real-space renormalization-group calculations for Heisenberg chains are presented.","journal":"Physical Review Letters","year":1992,"id":1083,"datarank":22.13281467686052,"base_score":8.952475967933584,"endowment":8.952475967933584,"self_citation_contribution":1.3428713951900377,"citation_network_contribution":20.78994328167048,"self_endowment_contribution":1.3428713951900377,"citer_contribution":20.78994328167048,"corpus_percentile":94.7,"corpus_rank":1562,"citation_count":7726,"citer_count":186,"citers_with_citation_signal":186,"citers_with_endowment":186,"datacite_reuse_total":0,"is_dataset":false,"is_oa":false,"file_count":0,"downloads":0,"has_version_chain":false,"published_date":"1992-11-09","authors":[{"id":14854,"name":"Steven R. White","orcid":"0000-0003-3496-0707","position":0,"is_corresponding":true}],"reference_count":11,"raw_metadata":{"citation_network_status":"fetched"},"created_at":"2026-03-01T18:20:47.508186Z","pmid":null,"pmcid":null,"fwci":null,"citation_percentile":null,"influential_citations":0,"oa_status":null,"license":null,"views":0,"total_file_size_bytes":0,"version_count":0,"clinical_trials":[],"software_tools":[],"db_accessions":[],"linked_datasets":[],"topics":[]}