506 papers
This paper proposes that assuming a thermal initial state for gauge fields during inflation, rather than the standard vacuum, introduces a dissipative boost that enhances primordial magnetic fields by up to $10^{16}$, suggesting that embedding this mechanism in a warm inflation framework offers a promising path to inflationary magnetogenesis without requiring non-minimal couplings or modified electrodynamics.
This paper extends semi-classical instanton analysis to a symmetric quartic potential with four degenerate minima, deriving energy splittings and Rabi oscillations for distinct tunneling pathways that show excellent agreement with numerical results while revealing a critical coupling regime where the discrete symmetry melts into a continuous symmetry.
This paper proposes a new holographic dark energy model derived from a two-parameter generalized entropic functional, which naturally unifies standard holographic dark energy and CDM cosmology while successfully reproducing the matter-to-dark-energy transition and allowing for diverse dynamical behaviors like quintessence or phantom regimes.
This paper demonstrates that within the most general formulation of gravity with independent metric and connection, a unique naturally light vector or scalar distortion field emerges as a dynamical degree of freedom, notably predicting a light scalar particle that mixes with the Higgs boson.
This paper confirms that both local operator and line defect displacement correlators in holographic thermal CFTs exhibit "bouncing singularities" linked to black hole interiors, demonstrating exact agreement between WKB and OPE analyses and proposing a factorization formula to describe deviations from this universal high-frequency structure.
This paper demonstrates that Euclidean wineglass wormholes and no-boundary instantons belong to a unified family of solutions connected by a zero-charge limit, resolving the puzzle of negative wormhole actions and revealing that while no-boundary instantons dominate the probability distribution, small-charge wormholes favor longer inflationary phases.
This paper establishes a framework of Courant algebroid relations to connect Dirac structures, spinors, and generalised complex/Kähler geometries, demonstrating how these relations induce T-duality in supersymmetric sigma-models and remain compatible with Type II supergravity equations.
This paper demonstrates that within Einstein gravity coupled to nonlinear electrodynamics and a phantom scalar field, the Simpson-Visser regular black hole possesses a vanishing thermodynamic mass due to boundary contributions, yet remains thermodynamically less favorable than its singular counterpart when compared under identical thermal and magnetic conditions.
This paper develops a universal effective field theory for the low-energy surface oscillations of self-bound superfluid droplets, deriving the normal-mode eigenfrequencies, identifying a critical instability for the breathing mode, and quantizing the resulting ripplons to describe multi-ripplon states in systems like Bose mixtures.
This paper introduces , a high-performance Go-based tool for rapidly evaluating conformal blocks in odd spacetime dimensions via recursive relations, demonstrating significant speed improvements over existing packages and successfully applying the method to optimize the mixed-correlator bootstrap of the 3D Ising model and vector models.
This paper demonstrates that the decoupling limits of matrix theory on D-particles give rise to non-Lorentzian supergravity, whose dynamics are linked to worldsheet current algebra anomalies and which, through D-particle backreaction, holographically connects to both Lorentzian IIA supergravity at large N and the null reduction of eleven-dimensional supergravity at moderately large N.
By placing conformal field theories on pp-wave backgrounds to exploit Heisenberg-group symmetries and locality, this paper derives strong constraints on the asymptotic spectrum of large-spin operators and establishes a new unitarity bound in $3+1$ dimensions based on causality.
This paper demonstrates that while the "annihilation-to-nothing" scenario in the quantum Schwarzschild interior depends on specific factor ordering in standard quantization, the inclusion of minimal-length effects via a Generalized Uncertainty Principle suppresses this behavior, thereby challenging its robustness as a singularity resolution mechanism.
This paper investigates the vacuum expectation value of bosonic currents induced by a magnetic flux in a (2+1)-dimensional conical spacetime within a Hořava-Lifshitz Lorentz-violating framework, deriving analytical expressions for both boundary-free and boundary-induced contributions under Robin boundary conditions and analyzing their asymptotic behaviors.
This paper investigates entanglement in two-dimensional Yang-Mills theory, revealing that while standard Euclidean path integral states become separable at infinite volume, specific configurations involving Wilson lines and loops maintain finite entanglement through projectors onto non-trivial vacuum sectors, offering new insights into large-volume confinement transitions.
This study demonstrates the first observation of robust, coherent non-Abelian hadron dynamics on a noisy 156-qubit quantum processor by simulating a 60-site SU(2) lattice gauge theory using a hardware-efficient encoding, successfully capturing meson propagation and breathing modes while outperforming classical approximation methods in the weak-coupling regime.
This paper investigates how coupling quasi-topological gravity to matter affects the regularity of spacetime solutions, demonstrating that while minimally coupled matter can disrupt the universal curvature bounds of the vacuum theory, specific stress-tensor conditions still ensure regularity, and non-minimal couplings can fully restore Markov's limiting curvature hypothesis with mass- and charge-independent curvature bounds.
Using the functional renormalization group within the quark-meson model, this study demonstrates that the critical scaling region of the chiral phase transition systematically shrinks as chemical potential increases, with consistent results observed across both local potential approximations.
This paper critically examines a recent analysis claiming evidence for a QCD critical end point via finite-size scaling of net-proton cumulants, highlighting methodological issues regarding acceptance windows, multiplicity scaling, and thermodynamic fields that must be addressed for a consistent interpretation.
This paper computes the graviton-mediated two-to-two scattering amplitude and cross-section for scalar particles within asymptotically safe quantum gravity by determining the full momentum dependence of the scalar-graviton vertex via the functional renormalization group, demonstrating that the results recover General Relativity at low energies while preserving unitarity in the ultraviolet regime.