A new analysis of the Klein paradox reveals how constant and pulsed electric fields can induce current flow through what appears to be a vacuum, a consequence of fundamental particle-antiparticle creation.
New theoretical work reveals how spin decoherence impacts magnetoresistance in nanoscale magnetic materials, offering a more complete picture than traditional models.
![Correlation functions for [latex]J/\psi \Lambda[/latex] pairs were obtained, parameterized according to the values detailed in Table 2, to explore the underlying dynamics of this particle system.](https://arxiv.org/html/2512.24247v1/x5.png)
This review explores the subtle forces between particles and how they reveal the existence of previously unknown states of matter.
![The residue of a bound-state pole in a six-dimensional system exhibits a dependence on the bound-state mass [latex]m_b^2[/latex], with calculations employing [latex]N_{max} = 8[/latex] and [latex]N_{max} = 10[/latex] demonstrating convergence of the renormalised coupling [latex]g_{ren}[/latex] to a finite value at [latex]m_b^2 = 4[/latex].](https://arxiv.org/html/2512.24474v1/x6.png)
A new analysis reveals how the fundamental rules governing particle interactions change as we move beyond familiar dimensions.
Advances in spectroscopic techniques are now allowing scientists to directly visualize and quantify the geometric properties of electrons in solids, promising unprecedented control over material behavior.
![The study models interacting particles as a dimer of spheres-characterized by radius [latex]a[/latex] and inter-center distance [latex]d[/latex]-and represents their behavior through a two-port equivalent circuit applicable in both full-wave and static regimes, ultimately defining a resonant mode condition where input impedance reaches zero and is sensitive to polarization along the [latex]x[/latex], [latex]y[/latex], and [latex]z[/latex] axes.](https://arxiv.org/html/2512.24104v1/x1.png)
New research reveals how to precisely control light scattering from paired spheres by harnessing exceptional points of degeneracy, opening doors to more sensitive optical sensors.
This review unveils a powerful formalism for analyzing Gaussian quantum states, revealing insights into phenomena like Hawking radiation and its experimental investigation via analogue gravity systems.
![The study demonstrates that the rescaled root-mean-square velocity of an axion domain wall network evolves predictably with conformal time, indicating a parameter space-where the axion mass [latex]m_a \lesssim 10^8 \text{ eV}[/latex] and the coupling [latex]g_{a\gamma\gamma}[/latex] are relatively small-distinct from previously explored, friction-dominated regimes, as evidenced by concurrent tracking of the rescaled energy density.](https://arxiv.org/html/2512.23775v1/yv_friction.png)
A new theoretical study explores the behavior of axion domain walls in the early universe, revealing how plasma interactions and thermal effects shape these potential dark matter candidates.
![The non-uniform Rindler spacetime-a non-inertial framework for observers undergoing non-uniform acceleration-is characterized by event horizons and trajectories that generalize those found in uniform acceleration, as depicted in a [latex]\rm{z}-\rm{t}[/latex] plane where red lines delineate horizons, blue lines trace Rindler trajectories, and green lines denote their generalized counterparts.](https://arxiv.org/html/2512.23892v1/Figures/FIG08.png)
New research reveals that uniformly accelerating observers experience a modified Unruh effect, demonstrating a time-dependent distortion of the quantum vacuum into squeezed states.
New research reveals how non-Hermitian physics can unlock unusual supercurrent behavior in Josephson junctions, offering a pathway to explore exotic quantum phenomena.