{"total":16,"items":[{"citing_arxiv_id":"2605.13804","ref_index":24,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"An algebra of proper observables at null infinity: Dirac brackets, Memory and Goldstone probes","primary_cat":"hep-th","submitted_at":"2026-05-13T17:29:39+00:00","verdict":null,"verdict_confidence":null,"novelty_score":null,"formal_verification":null,"one_line_summary":null,"context_count":1,"top_context_role":"method","top_context_polarity":"use_method","context_text":"different boundary conditions, or larger symmetries corresponding to weaker fall-off conditions. Let us mention some possible directions of further developments. It has been recently shown that the symplectic center-less representation of the BMS alge- bra holds also for the partial flux between two arbitrary cross sections [30, 36], thanks to the general covariance of the Ashtekar-Streubel symplectic potential [24, 29]. It would then be interesting to apply our methods to the partial radiative phase space between two cross sections, where the non-trivial boundary conditions may now in- clude a non-vanishing news, in order to have a well-defined notion of Dirac bracket also in this context. Larger symmetries, such as eBMS [37, 25, 30], gBMS [38, 33] or BMSW [39], all require corner improvements of the symplectic form, as well as"},{"citing_arxiv_id":"2605.04145","ref_index":66,"ref_count":1,"confidence":0.9,"is_internal_anchor":false,"paper_title":"When AdS$_3$ Grows Hair: Boson Stars, Black Holes, and Double-Trace Deformations","primary_cat":"hep-th","submitted_at":"2026-05-05T18:00:01+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":7.0,"formal_verification":"none","one_line_summary":"In AdS3 gravity with double-trace scalar boundary conditions, zero-frequency boson stars are the true ground state below the instability threshold, and hairy black holes carry higher entropy than BTZ at fixed mass and angular momentum.","context_count":1,"top_context_role":"method","top_context_polarity":"use_method","context_text":"Appendix B finds the boson stars for theories whereby the double-trace boundary condition reduces to its Dirichlet and Neumann limits. Thephysicalconserved mass and angular momentum of our solutions is computed from first principles using holographic renormalization [59-62] in Appendix C and, alternatively, using the covariant Noether-charge (covariant phase-space) formalism [63-66] in Appendix D. 2 Setup of the physical problem and thermodynamic quantities 2.1 Theory, field ansätze, equations of motion and symmetries We consider Einstein gravity in three-dimensional anti-de Sitter space (AdS3) with a negative cosmological constantΛ = −1/L2, where L denotes the AdS3 curvature radius. The theory is minimally coupled to a neutral, massive complex scalar fieldΦ."},{"citing_arxiv_id":"2605.03311","ref_index":38,"ref_count":1,"confidence":0.9,"is_internal_anchor":false,"paper_title":"Noether charges and the first law of thermodynamics for multifractional Schwarzschild black hole in the q-derivative theory","primary_cat":"gr-qc","submitted_at":"2026-05-05T02:57:39+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":5.0,"formal_verification":"none","one_line_summary":"Multi-fractional Schwarzschild black holes have profile-insensitive Noether mass and geometric area-law entropy, but require an extended first law with work terms for the q-profile parameters to restore integrability of the Clausius relation.","context_count":1,"top_context_role":"method","top_context_polarity":"use_method","context_text":"1487 (1996), arXiv:gr-qc/9501014. [36] G. Calcagni and G. Nardelli, Momentum transforms and Laplacians in fractional spaces, Adv. Theor. Math. Phys.16, 1315 (2012), arXiv:1202.5383 [math-ph]. [37] R. M. Wald and A. Zoupas, A General definition of 'conserved quantities' in general relativity and other theories of gravity, Phys. Rev. D61, 084027 (2000), arXiv:gr-qc/9911095. [38] G. Barnich and F. Brandt, Covariant theory of asymptotic symmetries, conservation laws and central charges, Nucl. Phys. B633, 3 (2002), arXiv:hep-th/0111246. [39] T. Regge and C. Teitelboim, Role of Surface Integrals in the Hamiltonian Formulation of General Relativity, Annals Phys.88, 286 (1974). [40] J. D. Brown and J. W. York, Jr., Quasilocal energy and conserved charges derived from the gravitational action, Phys."},{"citing_arxiv_id":"2604.13362","ref_index":22,"ref_count":1,"confidence":0.9,"is_internal_anchor":false,"paper_title":"Quasi-Local Celestial Charges and Multipoles","primary_cat":"hep-th","submitted_at":"2026-04-14T23:59:01+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":6.0,"formal_verification":"none","one_line_summary":"Explicit quasi-local formulae for celestial higher-spin charges and multipoles are given on finite 2-surfaces using higher-valence twistor solutions, with a phase-space derivation from self-dual gravity.","context_count":1,"top_context_role":"method","top_context_polarity":"use_method","context_text":"Yau,Quasilocal mass in general relativity, Phys. Rev. Lett.102(2009) 021101,0804.1174 [20] L. B. Szabados,Quasi-Local Energy-Momentum and Angular Momentum in General Relativity, Living Rev. Rel.12(2009) 4 [21] V. Iyer and R. M. Wald,Some properties of Noether charge and a proposal for dynamical black hole entropy, Phys. Rev. D50(1994) 846-864,gr-qc/9403028 [22] R. M. Wald and A. Zoupas,A General definition of 'conserved quantities' in general relativity and other theories of gravity, Phys. Rev.D61(2000) 084027,gr-qc/9911095 [23] G. Barnich and F. Brandt,Covariant theory of asymptotic symmetries, conservation laws and central charges, Nucl. Phys.B633(2002) 3-82,hep-th/0111246 [24] G. Barnich,Boundary charges in gauge theories: Using Stokes theorem in the bulk, Class."},{"citing_arxiv_id":"2604.13163","ref_index":28,"ref_count":1,"confidence":0.9,"is_internal_anchor":false,"paper_title":"Covariant phase space approach to noncommutativity in tensile and tensionless open strings","primary_cat":"hep-th","submitted_at":"2026-04-14T18:00:01+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":6.0,"formal_verification":"none","one_line_summary":"Covariant phase space analysis shows tensionless open strings in constant Kalb-Ramond background have purely boundary-supported phase space with noncommutative endpoint coordinates, recovering Seiberg-Witten noncommutativity for tensile strings and unifying both cases.","context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"Iyer and R. M. Wald,Some properties of Noether charge and a proposal for dynamical black hole entropy,Phys. Rev. D50(1994) 846 [gr-qc/9403028]. [26] D. Harlow and J.-Q. Wu,Covariant phase space with boundaries,JHEP10(2020) 146 [1906.08616]. [27] A. Ashtekar, L. Bombelli and O. Reula,THE COVARIANT PHASE SPACE OF ASYMPTOTICALLY FLAT GRAVITATIONAL FIELDS, . [28] R. M. Wald and A. Zoupas,A General definition of ¨ conserved quantities¨ ın general relativity and other theories of gravity,Phys. Rev. D61(2000) 084027 [gr-qc/9911095]. [29] G. Barnich and G. Compere,Surface charge algebra in gauge theories and thermodynamic integrability,J. Math. Phys.49(2008) 042901 [0708.2378]. [30] V. Chandrasekaran, 'E. 'E. Flanagan and K."},{"citing_arxiv_id":"2604.00170","ref_index":99,"ref_count":1,"confidence":0.9,"is_internal_anchor":false,"paper_title":"Thermodynamics of dynamical black holes beyond perturbation theory","primary_cat":"gr-qc","submitted_at":"2026-03-31T19:20:43+00:00","verdict":"ACCEPT","verdict_confidence":"MODERATE","novelty_score":7.0,"formal_verification":"none","one_line_summary":"The authors derive non-perturbative first and second laws for dynamical black holes, identifying entropy with the area of local marginally trapped surfaces rather than the global event horizon.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2601.23019","ref_index":88,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Toward claiming a detection of gravitational memory","primary_cat":"gr-qc","submitted_at":"2026-01-30T14:27:25+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":6.0,"formal_verification":"none","one_line_summary":"A framework using scale separation in the Isaacson description defines observable gravitational memory rise for compact binary coalescences, providing a basis for hypothesis testing in LISA data.","context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"form, encompassing both oscillatory gravitational waves and memory, with contributions arising from both the null and ordinary part of the radiation. While for quasi- circular binary black hole mergers most oscillatory radia- tion resides in the ordinary sector, bursts of gravitational radiation generically also exhibit oscillatory features in the null sector of the time-dependent waveform [88]. These affect the SNR attributed to a given memory model, including for quasi-circular systems with only mild mass asymmetry as shown explicitly in Sec. III A 2 below.8 In the next section [Sec. II B], we therefore seek to de- fine a general time-dependent gravitational memory com- ponent within asymptotic radiation, with particular em- phasis on nonlinear memory."},{"citing_arxiv_id":"2512.11754","ref_index":37,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Modular Witten Diagrams and Quantum Extremality","primary_cat":"hep-th","submitted_at":"2025-12-12T18:05:09+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":6.0,"formal_verification":"none","one_line_summary":"Modular Witten diagrams reproduce the O(λ² G_N) correction to holographic entanglement entropy, matching the canonical energy term in the quantum Ryu-Takayanagi formula with wedge shape deformation.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2510.26589","ref_index":149,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Localization and anomalous reference frames in gravity","primary_cat":"hep-th","submitted_at":"2025-10-30T15:14:23+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":6.0,"formal_verification":"none","one_line_summary":"Constructs a phase space for gravitational degrees of freedom on null ray segments with commuting localized observables via edge modes and dressing time, then introduces an effective classical theory with Virasoro deformations to capture diffeomorphism anomalies and distinguish gauge, physical, and ","context_count":1,"top_context_role":"background","top_context_polarity":"support","context_text":"all other choices: First, the commutator of the dressing fields at different times Poisson-commutes. At the quantum level, this means that the dressing time is the most efficient reference frame in the sense that it minimizes its Heisenberg uncertainty. Second, it is such that the classical dressed constraint satisfies a generalization of the Wald-Zoupas criteria [149] as explained in [108]. In particular, this means that the dressed constraint equation simply reads∂2 v ˜Ω =−∑ i(∂v ˜φi)2 with no additional spin0 40 energy involved. This implies that the expansion is constant when there is no radiation and, moreover, that the area element in dressing time satisfies an analog of the Generalized Second Law (GSL) [78]."},{"citing_arxiv_id":"2510.25688","ref_index":10,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Conformal Blocks in 2d Carrollian/Galilean CFTs and Excited State Entanglement Entropy","primary_cat":"hep-th","submitted_at":"2025-10-29T16:54:11+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":6.0,"formal_verification":"none","one_line_summary":"Derives heavy-light conformal blocks in 2d C/G CFTs and computes excited-state entanglement entropy via replica trick, finding thermal form that reproduces holographic EE and establishes dictionary between boundary weights and bulk mass/angular momentum.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2510.19939","ref_index":5,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Covariant phase space and the semi-classical Einstein equation","primary_cat":"hep-th","submitted_at":"2025-10-22T18:08:32+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":6.0,"formal_verification":"none","one_line_summary":"A semi-classical symplectic two-form is defined as the sum of the gravitational symplectic form and the Berry curvature of the quantum matter state; it is shown to be independent of the Cauchy slice and to satisfy a quantum generalization of the Hollands-Iyer-Wald identity.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2509.05052","ref_index":99,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Semi-classical spacetime thermodynamics","primary_cat":"hep-th","submitted_at":"2025-09-05T12:31:59+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":5.0,"formal_verification":"none","one_line_summary":"Derives semi-classical gravity from thermodynamics of stretched light cones in 2D dilaton gravity with explicit conformal anomaly backreaction and shows equations of motion follow from dynamical Wald entropy in Brans-Dicke theories.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2508.01446","ref_index":70,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Radiation in Fluid/Gravity and the Flat Limit","primary_cat":"hep-th","submitted_at":"2025-08-02T17:28:33+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":6.0,"formal_verification":"none","one_line_summary":"Establishes a holographic link between bulk gravitational radiation and dissipative corrections plus entropy production in boundary fluids, then constructs Carrollian analogues and celestial observables in the flat limit.","context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"Geroch,Asymptotic Structure of Space-Time, inSymposium on Asymptotic Structure of Space-Time, 1977. [68] A. Ashtekar and M. Streubel,Symplectic Geometry of Radiative Modes and Conserved Quantities at Null Infinity, Proc. Roy. Soc. Lond. A376 (1981) 585-607. [69] A. Ashtekar,Radiative Degrees of Freedom of the Gravitational Field in Exact General Relativity, J. Math. Phys.22 (1981) 2885-2895. [70] R. M. Wald and A. Zoupas,A General definition of 'conserved quantities' in general relativity and other theories of gravity, Phys. Rev. D61 (2000) 084027, [gr-qc/9911095]. [71] A. Ashtekar,Geometry and physics of null infinity, Surveys Diff. Geom.20 (2015), no. 1 99-122, [arXiv:1409.1800]. [72] 'E. 'E. Flanagan and D. A. Nichols,Conserved charges of the extended Bondi-Metzner-Sachs"},{"citing_arxiv_id":"2504.12521","ref_index":234,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Lectures on the Bondi--Metzner--Sachs group and related topics in infrared physics","primary_cat":"gr-qc","submitted_at":"2025-04-16T22:47:28+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":3.0,"formal_verification":"none","one_line_summary":"Lecture notes that build the BMS group from prerequisites to applications in soft theorems, memory effects, and new material on asymptotic conformal Killing horizons.","context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"de Aguiar Alves. Lectures on the Bondi-Metzner-Sachs Group and Related Topics in Infrared Physics. 2025. arXiv: 2504.12521 [gr-qc]. This work © 2025 by Níckolas de Aguiar Alves is licensed under Creative Commons Attribution 4.0 International /creative-commons /creative-commons-by. Cover: perturbative diagrams used in the proof of Weinberg's soft graviton theorem[234], discussed on Section 6.4. Lectures on the BMS Group Aguiar Alves Contents 1 Introduction 3 2 Symmetries and Groups 4 2.1 Case Study: Rotations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.2 Case Study: Lorentz Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.3 Case Study: Poincaré Group ."},{"citing_arxiv_id":"2406.02815","ref_index":32,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Frames and Slicings for Angular Momentum in Post-Minkowski Scattering","primary_cat":"gr-qc","submitted_at":"2024-06-04T23:11:19+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":5.0,"formal_verification":"none","one_line_summary":"Hyperboloidal slices and distinct early/late BMS transformations reconcile mass moment calculations in post-Minkowski scattering and support a conjectured all-order flux balance law.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2202.04702","ref_index":76,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Carrollian Perspective on Celestial Holography","primary_cat":"hep-th","submitted_at":"2022-02-09T19:52:15+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":6.0,"formal_verification":"none","one_line_summary":"A 3d sourced conformal Carrollian field theory is proposed to holographically capture 4d flat gravity kinematics, with Ward identities matching 2d celestial CFT after relating operators.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null}],"limit":50,"offset":0}