Gravitational Radiation and Charges on de SitterWe give a summary of our work [3] and [4] with Geoffrey Compère and Sk Jahanur Hoque. After quickly reviewing the Λ-BMS solution space and why it is not trivial to define an analogue of Bondi mass…Emine Şeyma Kutluk·Jun 23, 2026SaveLearn
Traversable Casimir Wormholes with Gravitational MemoryWe investigate a class of traversable wormhole geometries supported by an effective Casimir source corrected by gravitational memory. The construction is motivated by the fact that a time-dependent…Jonathan A. Rebouças, Francisco Bento Lustosa, Celio R. Muniz·Jun 23, 2026SaveLearn
Traversable Wormholes Supported by Entropy-Inspired Effective Matter SectorsThe thermodynamic interpretation of gravity suggests that modifications of horizon entropy can be encoded in effective geometries and matter distributions. Motivated by the entropy--geometry…Jonathan A. Rebouças, Francisco Bento Lustosa, Celio R. Muniz·Jun 23, 2026SaveLearn
GWTC-5.0: Observations from the Second Part of the Fourth LIGO-Virgo-KAGRA Observing Run and Updates to the Gravitational-Wave Transient CatalogVersion 5.0 of the Gravitational-Wave Transient Catalog (GWTC-5.0) adds new candidates detected by the LIGO Virgo KAGRA network of observatories through the second part of the fourth observing run…The LIGO Scientific Collaboration, the Virgo Collaboration, the KAGRA Collaboration et al.·Jun 23, 2026SaveLearn
GWTC-5.0: Methods for Identifying and Characterizing Gravitational-wave TransientsThe Gravitational-Wave Transient Catalog (GWTC) is a collection of candidate gravitational-wave transient signals identified and characterized by the LIGO-Virgo-KAGRA Collaboration. Producing the…The LIGO Scientific Collaboration, the Virgo Collaboration, the KAGRA Collaboration et al.·Jun 23, 2026SaveLearn
GWTC-5.0: An Introduction to Version 5.0 of the Gravitational-Wave Transient CatalogThe Gravitational-Wave Transient Catalog (GWTC) is a collection of short-duration (transient) gravitational-wave signals identified by the LIGO-Virgo-KAGRA Collaboration in gravitational-wave data…The LIGO Scientific Collaboration, the Virgo Collaboration, the KAGRA Collaboration et al.·Jun 23, 2026SaveLearn
Versal transition scenarios in inflationary cosmology: slow roll, ultra-slow roll, and oscillatory exitWe develop a physics-facing version of the persistence/transition-variety framework for scalar-field cosmology, tailored to inflationary dynamics. The guiding idea is that observationally viable…Spiros Cotsakis·Jun 23, 2026SaveLearn
Quantum Correlations of Neutrinos in the Kerr-Newman Space-timeQuantum phases establish a connection between gravitation and quantum information, offering a novel avenue for exploring the properties of space-time. In this paper, we investigate the quantum…Ze-Wen Li, Shu-Jun Rong·Jun 23, 2026SaveLearn
Stationary Einstein-vector-Gauss-Bonnet black holesWe study spontaneously vectorized black holes in Einstein-vector-Gauss-Bonnet theory with a quadratic coupling function. Besides the static, spherically symmetric black holes carrying an electric…Burkhard Kleihaus, Jutta Kunz·Jun 23, 2026SaveLearn
A Nonlinear Endpoint of Charged Horizon InstabilitiesWe numerically construct asymptotically extremal black holes through the nonlinear evolution of a charged scalar field. Our procedure -- which extends the work of Murata-Reall-Tanahashi to include…Zachary Gelles, Frans Pretorius·Jun 23, 2026SaveLearn
Reconsidering the consistent use of precessing, higher order multipole models for gravitational wave analysesThe growing number of gravitational-wave (GW) observations allows for constraints to be placed on the underlying population of black holes; current estimates show that black hole spins are small,…Charlie Hoy·Jun 23, 2026SaveLearn
Dynamics of kinks in a traversable wormholeWe investigate the dynamics of spherically symmetric radial domain walls (or kinks) in a traversable Simpson-Visser wormhole. By solving the scalar field in a double-well potential, we find that the…Tian-Chi Ma, Hai-Qing Zhang·Jun 23, 2026SaveLearn
Bimodular Gravity: Vacuum Evolution with a Frame-Dependent Phantom CrossingUnimodular gravity recasts the cosmological constant as an integration constant, fixed by a constraint on the volume element rather than chosen in the action. We ask what becomes of this constant…James Hallam, João Magueijo·Jun 23, 2026SaveLearn
On the uniqueness of continuous spacetime extensions in 1+1 dimensions with applications to weak null singularitiesMotivated by weak null singularities in black hole interiors, we study 1+1 dimensional Lorentzian manifolds (M,g) which admit a continuous spacetime extension across a null boundary v=0, where…Peter Cameron, Jan Sbierski·Jun 23, 2026SaveLearn
Bridging the gap between dark matter and MOND by a relativistc scalar field approachA Lagrangian model for a general relativistic scalar field, formulated in the framework of integrable Weyl geometry, is studied. Under the present assumptions it modifies the light cone structure and…Erhard Scholz·Jun 23, 2026SaveLearn
The Doppler boosted LISA response to gravitational wavesFuture space-based gravitational wave observatories like LISA, TianQin and Taji are expected to detect massive black hole binaries (MBHBs) with high signal-to-noise ratios (SNRs), ranging up to…Tom van der Steen, Henri Inchauspé, Thomas Hertog et al.·Jun 23, 2026SaveLearn
Precision cosmology with exact inhomogeneous solutions of General Relativity: the Szekeres modelsThe exact Friedman solution to the field equations of General Relativity (GR) describing a homogeneous and isotropic universe together with its linear and higher-order perturbations are the…Marie-Noëlle Célérier·Jun 23, 2026SaveLearn
A nonsingular, anisotropic universe in a black hole with torsion and particle productionWe consider a universe formed in a black hole in general relativity with spin and torsion. The interior of a Schwarzschild black hole can be represented by the Kantowski-Sachs metric that describes…Nikodem J. Popławski·Jun 23, 2026SaveLearn
Energy Extraction via Magnetic Reconnection from a Rotating Dyonic Black Hole in N = 2, \ U(1)2 Gauged SupergravityWe study energy extraction via magnetic reconnection from a rotating dyonic black hole in four-dimensional N=2, U(1)2 gauged supergravity. Using the Comisso-Asenjo mechanism in the ZAMO frame,…Raid M Suleiman, Shanshan Rodriguez, Dominic O. Chang et al.·Jun 22, 2026SaveLearn
A thorough investigation of cross-correlation estimators for stochastic gravitational-wave background searches in ground-based detector dataDetecting a stochastic gravitational-wave background represents a crucial yet challenging objective within the field of gravitational-wave astronomy. Ground-based detectors currently rely almost…Haowen Zhong, Joseph D. Romano, Vuk Mandic et al.·Jun 22, 2026SaveLearn
Black Hole Ringdown Nonlinearities in the Large-D LimitWe initiate the study of nonlinear effects in the ringdown phase of black hole mergers using the effective theory of black hole dynamics in the large-D limit. This framework offers several…Roberto Emparan, Amanda Green-Salinas, David Pereñiguez et al.·Jun 22, 2026SaveLearn
EGUP effects on the thermodynamic properties of the Kerr-Newman black hole surrounded by quintessenceIn this paper, we investigate the effects of the Extended Generalized Uncertainty Principle (EGUP) on the thermodynamic quantities of the Kerr-Newman black hole surrounded by quintessence (KNBHQ).…Aheibam Boycha Meitei, Yenshembam Priyobarta Singh, T. Ibungochouba Singh et al.·Jun 22, 2026SaveLearn
Equatorial Periodic Orbits and Gravitational Wave Phenomenology around Spherically-symmetric vacuum solution in Freund-Nambu scalar-tensor gravityWe investigate test particle dynamics and gravitational wave (GW) phenomenology in an exact spherically symmetric vacuum solution of Freund - Nambu scalar - tensor gravity. This framework generalizes…Dhruba Jyoti Gogoi, Jyatsnasree Bora, Himanshu Chaudhary et al.·Jun 22, 2026SaveLearn
Affine quantization of the dynamical Reissner--Nordström regionWe study the quantum dynamics of the dynamical region of the Reissner--Nordström geometry using a minisuperspace reduction and affine quantization, which is naturally suited for positive-definite…Morteza Bajand, Babak Vakili·Jun 22, 2026SaveLearn
Dark matter from the quadratic spinor Lagrangian I: Geometric mass for a gravitationally produced spin-1/2 fermionThe gravitational-wave induced freeze-in of Maleknejad and Kopp (2026) produces dark fermions from a stochastic gravitational-wave background, but requires them to acquire mass by separate means. We…Roh-Suan Tung·Jun 22, 2026SaveLearn