{"work":{"id":"0b9c18df-edb6-4f68-b80e-c16de110f39d","openalex_id":null,"doi":null,"arxiv_id":"1611.03470","raw_key":null,"title":"Moving the CFT into the bulk with $T\\bar T$","authors":null,"authors_text":"L","year":2016,"venue":"hep-th","abstract":"Recent work by Zamolodchikov and others has uncovered a solvable irrelevant deformation of general 2D CFTs, defined by turning on the dimension 4 operator $T \\bar T$, the product of the left- and right-moving stress tensor. We propose that in the holographic dual, this deformation represents a geometric cutoff that removes the asymptotic region of AdS and places the QFT on a Dirichlet wall at finite radial distance $r = r_c$ in the bulk. As a quantitative check of the proposed duality, we compute the signal propagation speed, energy spectrum, and thermodynamic relations on both sides. In all cases, we obtain a precise match. We derive an exact RG flow equation for the metric dependence of the effective action of the $T \\bar T$ deformed theory, and find that it coincides with the Hamilton-Jacobi equation that governs the radial evolution of the classical gravity action in AdS.","external_url":"https://arxiv.org/abs/1611.03470","cited_by_count":null,"metadata_source":"pith","metadata_fetched_at":"2026-05-25T04:25:19.551015+00:00","pith_arxiv_id":"1611.03470","created_at":"2026-05-10T08:48:01.234506+00:00","updated_at":"2026-05-25T04:25:19.551015+00:00","title_quality_ok":true,"display_title":"McGough, M","render_title":"McGough, M"},"hub":{"state":{"work_id":"0b9c18df-edb6-4f68-b80e-c16de110f39d","tier":"hub","tier_reason":"10+ Pith inbound or 1,000+ external citations","pith_inbound_count":15,"external_cited_by_count":null,"distinct_field_count":1,"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":"2026-06-02T13:54:47.457807+00:00","tier_text":"hub"},"tier":"hub","role_counts":[{"context_role":"background","n":8}],"polarity_counts":[{"context_polarity":"background","n":8}],"runs":{},"summary":{},"graph":{},"authors":[]}}