{"id":"https://openalex.org/keywords/exchange-correlation-functionals","display_name":"exchange-correlation functionals","description":"Exchange-correlation functionals are approximations in density functional theory for calculating the exchange and correlation energy from electron density.","display_name_alternatives":["exchange and correlation functionals","exchange and correlation functional","exchange-correlation energy functionals","exchange-correlation energy functional","exchange-correlation functional","XC functional","XC functionals"],"ids":{"openalex":"https://openalex.org/keywords/exchange-correlation-functionals","wikidata":null},"primary_topic":{"id":"https://openalex.org/T10002","display_name":"Advanced Chemical Physics Studies","score":0.686,"subfield":{"id":"https://openalex.org/subfields/3107","display_name":"Atomic and Molecular Physics, and Optics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10002","display_name":"Advanced Chemical Physics Studies","score":0.686,"subfield":{"id":"https://openalex.org/subfields/3107","display_name":"Atomic and Molecular Physics, and Optics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"works_count":6080,"cited_by_count":615537,"works_api_url":"https://api.openalex.org/works?filter=keywords.id:keywords/exchange-correlation-functionals","updated_date":"2026-10-20T04:07:40","created_date":"2026-09-30T00:00:00"}