{"work":{"id":"47bdfc44-79c1-4277-9ec7-6baedbfb68cd","openalex_id":null,"doi":null,"arxiv_id":"astro-ph/0004075","raw_key":null,"title":"The Cosmological Constant","authors":null,"authors_text":"S","year":2000,"venue":"astro-ph","abstract":"This is a review of the physics and cosmology of the cosmological constant. Focusing on recent developments, I present a pedagogical overview of cosmology in the presence of a cosmological constant, observational constraints on its magnitude, and the physics of a small (and potentially nonzero) vacuum energy.","external_url":"https://arxiv.org/abs/astro-ph/0004075","cited_by_count":null,"metadata_source":"pith","metadata_fetched_at":"2026-07-04T14:29:54.347904+00:00","pith_arxiv_id":"astro-ph/0004075","created_at":"2026-05-10T23:40:52.675933+00:00","updated_at":"2026-07-04T14:29:54.347904+00:00","title_quality_ok":false,"display_title":"The Cosmological Constant","render_title":"The Cosmological Constant"},"hub":{"state":{"work_id":"47bdfc44-79c1-4277-9ec7-6baedbfb68cd","tier":"hub","tier_reason":"10+ Pith inbound or 1,000+ external citations","pith_inbound_count":18,"external_cited_by_count":null,"distinct_field_count":5,"first_pith_cited_at":"2015-01-28T21:00:11+00:00","last_pith_cited_at":"2026-07-01T17:57:32+00:00","author_build_status":"not_needed","summary_status":"needed","contexts_status":"needed","graph_status":"needed","ask_index_status":"not_needed","reader_status":"not_needed","recognition_status":"not_needed","updated_at":"2026-08-07T03:40:42.728645+00:00","tier_text":"hub"},"tier":"hub","role_counts":[{"context_role":"background","n":8},{"context_role":"method","n":1}],"polarity_counts":[{"context_polarity":"background","n":7},{"context_polarity":"unclear","n":1},{"context_polarity":"use_method","n":1}],"runs":{},"summary":{},"graph":{},"authors":[]}}