{"work":{"id":"e4a81c71-e50e-431c-b309-a822d3d95d68","openalex_id":null,"doi":null,"arxiv_id":"hep-th/0004134","raw_key":null,"title":"Quantization of Four-form Fluxes and Dynamical Neutralization of the Cosmological Constant","authors":null,"authors_text":"R","year":2000,"venue":"hep-th","abstract":"A four-form gauge flux makes a variable contribution to the cosmological constant. This has often been assumed to take continuous values, but we argue that it has a generalized Dirac quantization condition. For a single flux the steps are much larger than the observational limit, but we show that with multiple fluxes the allowed values can form a sufficiently dense `discretuum'. Multiple fluxes generally arise in M theory compactifications on manifolds with non-trivial three-cycles. In theories with large extra dimensions a few four-forms suffice; otherwise of order 100 are needed. Starting from generic initial conditions, the repeated nucleation of membranes dynamically generates regions with a cosmological constant in the observational range. Entropy and density perturbations can be produced.","external_url":"https://arxiv.org/abs/hep-th/0004134","cited_by_count":null,"metadata_source":"pith","metadata_fetched_at":"2026-05-24T15:04:36.947266+00:00","pith_arxiv_id":"hep-th/0004134","created_at":"2026-05-11T14:41:27.714361+00:00","updated_at":"2026-05-24T15:04:36.947266+00:00","title_quality_ok":true,"display_title":"Quantization of Four-form Fluxes and Dynamical Neutralization of the Cosmological Constant","render_title":"Quantization of Four-form Fluxes and Dynamical Neutralization of the Cosmological Constant"},"hub":{"state":{"work_id":"e4a81c71-e50e-431c-b309-a822d3d95d68","tier":"hub","tier_reason":"10+ Pith inbound or 1,000+ external citations","pith_inbound_count":11,"external_cited_by_count":null,"distinct_field_count":4,"first_pith_cited_at":"2009-05-28T19:38:46+00:00","last_pith_cited_at":"2026-05-06T18:34:30+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":"2026-06-01T02:03:24.243149+00:00","tier_text":"hub"},"tier":"hub","role_counts":[{"context_role":"background","n":6}],"polarity_counts":[{"context_polarity":"background","n":6}],"runs":{},"summary":{},"graph":{},"authors":[]}}