Black hole as a multipartite entangler: multi-entropy in AdS3{}_3/CFT2{}_2

This paper investigates multipartite entanglement in pure BTZ black hole states within AdS3_3/CFT2_2 using multi-entropy and Steiner trees, revealing a high-temperature volume-law scaling for genuine tripartite entanglement, a phase transition when a subsystem exceeds half the total size, and nontrivial radial cutoff dependencies that contrast with vacuum AdS3_3 behavior.

Takanori Anegawa, Shota Suzuki, Kotaro TamaokaThu, 12 Ma⚛️ hep-th

Bridging Microscopic Constructions and Continuum Topological Field Theory of Three-Dimensional Non-Abelian Topological Order

This paper systematically bridges the gap between continuum topological field theory and microscopic lattice constructions of three-dimensional non-Abelian topological orders by explicitly deriving fusion and shrinking rules for the D4\mathbb{D}_4 quantum double model, thereby establishing a precise correspondence with a BFBF field theory with an AABAAB twist and resolving long-standing skepticism regarding its microscopic realizability.

Yizhou Huang, Zhi-Feng Zhang, Qing-Rui Wang, Peng YeThu, 12 Ma🔬 cond-mat.mes-hall

Sine-Liouville gravity as a Vertex Model on Planar Graphs

This paper establishes that a one-parameter generalization of the six-vertex model on planar graphs, known as the seven-vertex model, provides a non-perturbative realization of sine-Liouville gravity through its matrix model formulation, which complements Matrix Quantum Mechanics by covering parameter regimes where the latter lacks a simple interpretation and exhibits a gravitational flow analogous to the massless flow in the sine-Gordon model.

Ivan KostovThu, 12 Ma⚛️ hep-th

Gravitational memory meets astrophysical environments: exploring a new frontier through osculations

This paper investigates how dark matter environments, including minispikes and NFW haloes, modify the nonlinear gravitational memory of intermediate-mass-ratio binaries through effects like dynamical friction and accretion, ultimately demonstrating that these astrophysical surroundings leave a detectable hereditary imprint on gravitational wave signals that could be observed by future space-based detectors.

Rishabh Kumar Singh, Shailesh Kumar, Abhishek Chowdhuri, Arpan BhattacharyyaThu, 12 Ma⚛️ gr-qc

On β\beta-function of N=2\mathcal{N}=2 supersymmetric integrable sigma models II

This paper extends the study of regularization scheme dependence in N=2\mathcal{N}=2 supersymmetric sigma models to the five-loop order, identifying a specific renormalization scheme where the fifth-loop contribution vanishes and the fourth-loop term becomes a coordinate-independent invariant for models such as complete TT-duals of η\eta-deformed SU(n)/U(n1)SU(n)/U(n-1) and η\eta- or λ\lambda-deformed SU(2)/U(1)SU(2)/U(1) and SU(3)/U(2)SU(3)/U(2) models.

Mikhail Alfimov, Andrey KurakinThu, 12 Ma⚛️ hep-th

Cosmological Dressing Rules

This paper introduces "cosmological dressing rules" that transform flat space Feynman diagrams into in-in correlators for conformally coupled and massless scalar theories in four-dimensional de Sitter space, thereby revealing a hidden simplicity linked to flat space scattering amplitudes while correctly reproducing infrared divergences predicted by the Schwinger-Keldysh formalism.

Chandramouli Chowdhury, Arthur Lipstein, Joe Marshall, Jiajie Mei, Ivo SachsThu, 12 Ma⚛️ hep-th

Non-minimally coupled scalar field dark sector of the universe: in-depth (Einstein frame) case study

Motivated by recent DESI DR2 results suggesting evolving dark energy, this study analyzes spatially flat FLRW cosmological models with non-minimally coupled scalar fields in the Einstein frame, employing dynamical system methods to examine the evolution and stability of five specific scalar field models under various coupling parameters to understand energy transfer between the scalar sector and matter.

Marcin PostolakThu, 12 Ma⚛️ gr-qc