{"work":{"id":"2f03c361-5f0e-4a9e-9b9d-49d28e8f33ea","openalex_id":null,"doi":null,"arxiv_id":"1806.04920","raw_key":null,"title":"General Relativity from Scattering Amplitudes","authors":null,"authors_text":"N","year":2018,"venue":"hep-th","abstract":"We outline the program to apply modern quantum field theory methods to calculate observables in classical general relativity through a truncation to classical terms of the multi-graviton two-body on-shell scattering amplitudes between massive fields. Since only long-distance interactions corresponding to non-analytic pieces need to be included, unitarity cuts provide substantial simplifications for both post-Newtonian and post-Minkowskian expansions. We illustrate this quantum field theoretic approach to classical general relativity by computing the interaction potentials to second order in the post-Newtonian expansion, as well as the scattering functions for two massive objects to second order in the post-Minkowskian expansion. We also derive an all-order exact result for gravitational light-by-light scattering.","external_url":"https://arxiv.org/abs/1806.04920","cited_by_count":null,"metadata_source":"pith","metadata_fetched_at":"2026-07-04T11:49:51.377972+00:00","pith_arxiv_id":"1806.04920","created_at":"2026-05-11T07:55:58.432053+00:00","updated_at":"2026-07-04T11:49:51.377972+00:00","title_quality_ok":true,"display_title":"General Relativity from Scattering Amplitudes","render_title":"General Relativity from Scattering Amplitudes"},"hub":{"state":{"work_id":"2f03c361-5f0e-4a9e-9b9d-49d28e8f33ea","tier":"hub","tier_reason":"10+ Pith inbound or 1,000+ external citations","pith_inbound_count":10,"external_cited_by_count":null,"distinct_field_count":2,"first_pith_cited_at":"2025-10-08T18:00:06+00:00","last_pith_cited_at":"2026-05-19T15:04:24+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":"2026-06-27T06:55:48.552133+00:00","tier_text":"hub"},"tier":"hub","role_counts":[{"context_role":"background","n":7},{"context_role":"method","n":2}],"polarity_counts":[{"context_polarity":"background","n":7},{"context_polarity":"use_method","n":2}],"runs":{},"summary":{},"graph":{},"authors":[]}}