{"work":{"id":"d72b964f-a069-41f3-ba74-ff3c77a8feca","openalex_id":null,"doi":null,"arxiv_id":"1807.03916","raw_key":null,"title":"Expanding the Black Hole Interior: Partially Entangled Thermal States in SYK","authors":null,"authors_text":"A","year":2018,"venue":"hep-th","abstract":"We introduce a family of partially entangled thermal states in the SYK model that interpolates between the thermo-field double state and a pure (product) state. The states are prepared by a euclidean path integral describing the evolution over two euclidean time segments separated by a local scaling operator $\\mathcal{O}$. We argue that the holographic dual of this class of states consists of two black holes with their interior regions connected via a domain wall, described by the worldline of a massive particle. We compute the size of the interior region and the entanglement entropy as a function of the scale dimension of $\\mathcal{O}$ and the temperature of each black hole. We argue that the one-sided bulk reconstruction can access the interior region of the black hole.","external_url":"https://arxiv.org/abs/1807.03916","cited_by_count":null,"metadata_source":"pith","metadata_fetched_at":"2026-07-10T05:06:47.922325+00:00","pith_arxiv_id":"1807.03916","created_at":"2026-05-11T10:01:03.897736+00:00","updated_at":"2026-07-10T05:06:47.922325+00:00","title_quality_ok":true,"display_title":"Expanding the Black Hole Interior: Partially Entangled Thermal States in SYK","render_title":"Expanding the Black Hole Interior: Partially Entangled Thermal States in SYK"},"hub":{"state":{"tier_text":"hub","tier":"hub","tier_reason":"10+ Pith inbound or 1,000+ external citations","pith_inbound_count":10,"external_cited_by_count":null},"tier":"hub","role_counts":[{"context_role":"background","n":5}],"polarity_counts":[{"context_polarity":"background","n":4},{"context_polarity":"support","n":1}],"runs":{},"summary":{},"graph":{},"authors":[]}}