562 papers
This white paper, produced by the EU-funded Cosmic WISPers network, reviews the theoretical motivations and ongoing searches for Weakly Interacting Slim Particles (WISPs) as dark matter candidates, while outlining a strategic roadmap to secure European leadership in this field through diverse and cost-effective experiments over the next decade.
This paper investigates cosmology in gravity by demonstrating that a thick brane's embedding in a five-dimensional bulk naturally generates an effective cosmological constant and accelerated expansion without a fundamental brane constant, offering a geometric explanation for cosmic acceleration and the smallness of the observed cosmological constant.
This paper derives slowly rotating charged BTZ black hole solutions in 2+1 dimensional Palatini Chern-Simons gravity by employing a metric-affine formulation and a perturbative approach around a non-rotating background, demonstrating that specific parameter constraints are required to ensure stable perturbations that yield a rotating solution with constant angular momentum and magnetic field at the horizon.
This paper establishes that finite non-invertible symmetries in 3+1d without topological line operators necessarily act invertibly on local operators, leading to a decomposition of general non-invertible symmetries into invertible actions and gauging interfaces, and deriving necessary conditions for such symmetries to be anomaly-free.
This paper investigates the physical properties of accelerating Bertotti-Robinson black holes in a uniform magnetic field by analyzing their Hawking temperature, geodesic motion, orbital stability, photon sphere characteristics, and energy emission rates to determine how the acceleration and magnetic field parameters influence these phenomena.
This paper proposes that the infrared sector of asymptotically flat quantum gravity can be formulated as a geometric theory where integrating out fast bulk fluctuations induces a Berry connection on the space of asymptotic charges, thereby organizing gravitational states into superselection sectors defined by holonomy and establishing quantization as a global consistency condition for adiabatic transport.
This paper presents the first observational constraints on Luciano-Saridakis entropic cosmology using combined background data, demonstrating that the model provides a statistically robust fit to current observations and offers a viable extension to the standard CDM model with the potential to alleviate the Hubble tension.
This paper investigates the one-dimensional Generalized Dirac Oscillator within Doubly Special Relativity frameworks, demonstrating how complexified Morse interactions yield real spectra through pseudo-Hermiticity and symmetry while revealing distinct deformation effects on the energy spectrum under Magueijo--Smolin and Amelino--Camelia prescriptions.
This paper establishes a relationship between HOMFLY-PT and Kauffman polynomials for specific knot classes using Birman-Murakami-Wenzl algebra characters to prove a conjectured correspondence with Harer-Zagier factorisability for 3-strand knots, while demonstrating through 4-strand counterexamples that this correspondence does not hold universally for knots with higher braid indices.
This paper presents a recently proposed algorithm that transforms non-trivial Feynman integrals into an -factorised form, demonstrating its effectiveness through examples including three-loop banana integrals with unequal masses.
This paper establishes a correspondence between the Extended Uncertainty Principle (EUP) and the Schwarzschild black hole metric to demonstrate that while the event horizon remains unchanged, increasing EUP parameters expand the photon sphere but shrink the shadow size, thereby allowing observational data from Sgr A* to constrain EUP parameters.
The authors propose and demonstrate the axial anomaly as a robust benchmark for quantum computing by successfully simulating anomalous axial-charge production in lattice gauge theories on the "Reimei" trapped-ion quantum computer, reproducing the exact anomaly coefficient within statistical uncertainties without error mitigation.
This paper investigates the quasinormal modes of a scalar field on a parity-violating rotating black hole background, deriving perturbative frequency corrections for low spins and revealing significant deviations from Kerr predictions in the near-extremal regime, thereby offering a new method to probe parity-violating gravity in strong gravitational fields.
This paper demonstrates that late-time de Sitter cosmological correlators can be efficiently computed and analyzed using a non-unitary Euclidean AdS Lagrangian, revealing that the theory's unitarity is encoded in the positivity of the spectral density rather than standard CFT constraints, with resonant features in this density offering potential signatures for experimental detection.
This paper presents a preliminary lattice extraction of the Collins-Soper kernel in Collins' scheme using an auxiliary fermion field representation of the Wilson line, comparing the "ratio" and "double ratio" methods to achieve high statistical precision.
This paper presents the latest hybrid determination of the hadronic vacuum polarisation contribution to the muon magnetic moment by the BMW and DMZ collaborations, achieving 0.45% precision and overturning the theoretical consensus to resolve the long-standing discrepancy with experimental measurements.
This paper investigates the thermodynamic indivisibility of quantum-corrected AdS black holes with regular or phantom global monopoles, finding that while monopoles generally prevent fragmentation due to negative entropy differences, significant quantum fluctuations or a sufficiently large AdS radius can induce black hole splitting under specific mass ratio conditions.
This paper establishes a systematic framework for identifying separability structures in stationary, axisymmetric spacetimes with matter fields, using a generalized metric ansatz to derive new rotating black hole and wormhole solutions.
This paper investigates kink-anti-kink scattering in piece-wise quadratic-linear "Frankensteinian" potentials, proposing an interpretation of these models as free massive theories with threshold-driven pair production and demonstrating a phase-transition-like shift from wave disintegration to oscillon formation based on field thresholds and initial velocities.
This paper employs SU(2) chiral perturbation theory with isospin-breaking effects to derive the QCD -vacuum solution and compute the temperature dependence of topological observables and domain wall tension up to next-to-leading order, revealing distinct monotonic behaviors for different cumulants and providing crucial theoretical insights for axion physics in hot QCD matter.