{"work":{"id":"cd23fe6e-4a89-4fb7-a9c1-a768a73ebf15","openalex_id":null,"doi":null,"arxiv_id":"hep-th/0401146","raw_key":null,"title":"Expectation value of composite field $T{\\bar T}$ in two-dimensional quantum field theory","authors":null,"authors_text":"A","year":2004,"venue":"hep-th","abstract":"I show that the expectation value of the composite field $T{\\bar T}$, built from the components of the energy-momentum tensor, is expressed exactly through the expectation value of the energy-momentum tensor itself. The relation is derived in two-dimensional quantum field theory under broad assumptions, and does not require integrability.","external_url":"https://arxiv.org/abs/hep-th/0401146","cited_by_count":null,"metadata_source":"pith","metadata_fetched_at":"2026-05-25T04:25:19.497850+00:00","pith_arxiv_id":"hep-th/0401146","created_at":"2026-05-10T10:55:04.263933+00:00","updated_at":"2026-06-05T21:23:00.469572+00:00","title_quality_ok":true,"display_title":"Expectation value of composite field $T{\\bar T}$ in two-dimensional quantum field theory","render_title":"Expectation value of composite field $T{\\bar T}$ in two-dimensional quantum field theory"},"hub":{"state":{"work_id":"cd23fe6e-4a89-4fb7-a9c1-a768a73ebf15","tier":"hub","tier_reason":"10+ Pith inbound or 1,000+ external citations","pith_inbound_count":14,"external_cited_by_count":null,"distinct_field_count":2,"first_pith_cited_at":"2025-02-18T19:00:02+00:00","last_pith_cited_at":"2026-05-22T08:58:55+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":"2026-06-06T05:20:23.821250+00:00","tier_text":"hub"},"tier":"hub","role_counts":[{"context_role":"background","n":5}],"polarity_counts":[{"context_polarity":"background","n":5}],"runs":{},"summary":{},"graph":{},"authors":[]}}