![Within the ergoregion of a rotating Kerr-Newman black hole, orbital velocity Ω diverges near the central region for naked singularities, distinctly differentiating their behavior from that of a black hole where Ω remains finite, a phenomenon observable across varying [latex] Q [/latex] values and measured in units of [latex] M^{-1} [/latex] as a function of radial coordinate [latex] r [/latex] in units of [latex] M [/latex].](https://arxiv.org/html/2602.18972v1/x6.png)
A new analysis suggests that the precession of test gyroscopes could distinguish between the event horizons of black holes and the potentially observable surfaces of naked singularities.
A new study reveals that the language used in short application responses can predict early success in a demanding quantum computing program.
A new analysis suggests quintessence models with exponential potentials can significantly reduce the fine-tuning problem plaguing dark energy explanations.
![The thermodynamic curvature of relativistic fermions exhibits a distinct relationship with the chemical potential within a three-dimensional system undergoing an isothermal process [latex] \beta = 1 [/latex], suggesting an inherent sensitivity of fermionic behavior to subtle changes in energetic conditions.](https://arxiv.org/html/2602.19759v1/x4.png)
New research reveals how relativistic effects fundamentally alter the geometric properties of ideal gases, impacting condensation and equilibrium behavior.
A new kinetic theory framework reveals how dynamic scalar fields in K-essence cosmology influence the propagation of photons, potentially leaving subtle imprints on the cosmic microwave background.
![For parameters E=100, [latex]r_s[/latex]=0.5, and [latex]\rho_s[/latex]=0.2-corresponding to conditions depicted in the lower panel of Figure 1 using metric (19)-gravitational-wave signals exhibit irregular amplitude modulation and a loss of quasi-periodic structure, indicative of the stochastic nature of the orbital dynamics underlying these chaotic regimes.](https://arxiv.org/html/2602.19541v1/x23.png)
New research suggests that the chaotic influence of dark matter halos can leave detectable signatures in the gravitational waves emitted by black hole mergers.
New research explores how the order of quantum state updates within hidden Markov models fundamentally alters their behavior and entanglement properties.
This review explores the emotional landscape of significant life changes, from relocation and career shifts to the pursuit of personal growth.
![The relationship between string width and the dimensionless parameter [latex]\alpha = \lambda/\ell[/latex] reveals a convergence of numerical and analytical approaches, with a full numerical solution-depicted as a solid blue curve-supported by analytical approximations (dashed orange and green) valid in the regimes of small and large α, alongside predictions from the EST model (dashed gray).](https://arxiv.org/html/2602.17758v1/x11.png)
New research explores how the absence of a mass gap in bulk theories fundamentally alters the behavior of confining strings and their associated properties.
New research establishes conditions for determining the state of a quantum system governed by the Schrödinger equation, even with incomplete data.