Beyond Perturbation: A Novel Quantum Critical Point
![The data demonstrates a successful fit to the Equation of State [latex] (11) [/latex], indicating the model accurately captures the system's thermodynamic behavior under the conditions tested.](https://arxiv.org/html/2601.16051v1/x4.png)
New simulations of the Thirring model reveal a strongly-interacting quantum critical point with scaling exponents that challenge conventional theoretical predictions.
Science
Black Hole Echoes: Nonlinearity’s Subtle Impact
![Nonlinear simulations demonstrate the temporal evolution of massive scalar perturbations, where rescaling the evolved field as [latex]{\Phi\_{lm}}={\lambda^{n}}\phi\_{lm}^{(n)}[/latex] reveals that the [latex](0,0)[/latex] mode arises from the quadratic self-couplings of the linear [latex](1,1)[/latex], [latex](0,0)[/latex], and [latex](2,0)[/latex] modes, and exhibits excellent agreement between intermediate-time analytical predictions and corresponding numerical evolution.](https://arxiv.org/html/2601.16016v1/x14.png)
New research reveals that while massive scalar fields exhibit predictable behavior around black holes, quadratic quasinormal modes may offer a pathway to observe previously hidden nonlinear dynamics.
Strange Attraction: Mapping the Force Between Exotic Baryons
![The system models interactions between four baryons via a single meson, quantified by a coefficient [latex]N_{mj}^{nk}\phi[/latex], extending a previously established notation to delineate these multi-body relationships.](https://arxiv.org/html/2508.20498v2/x3.png)
New research explores the subtle interactions between hyperons and nucleons, shedding light on the strong force in exotic nuclear systems.
Warping Spacetime: A New Path to Lorentz-Violating Gravity
![For Kerr-(A)dS spacetime, the ranges of energy and rotation parameter define regions where the associated bumblebee field remains globally real or transitions to imaginary values, demarcated by critical curves and influenced by the cosmological constant [latex]\lambda=\Lambda m^{2}[/latex], with the dashed line indicating the threshold where the black hole becomes extremal.](https://arxiv.org/html/2601.16037v1/pic4.png)
Researchers have developed a novel technique to generate a family of spacetime solutions within bumblebee gravity, offering insights into how Lorentz symmetry might be broken.
Valley Currents: Harnessing Exciton-Polaritons for Ultrafast Optics
![A pronounced anomalous Hall effect is observed in valley-polarized polaritons, where strain-induced symmetry breaking generates an effective pseudomagnetic field driving a measurable drift velocity of [latex]1.69 \times 10^{5}~\mathrm{m/s}[/latex], as evidenced by the temporal evolution of valley polarization and confirmed by a two-Gaussian fit with a [latex]95\%[/latex] prediction interval.](https://arxiv.org/html/2601.15631v1/x2.png)
New research reveals an unexpected optical response in exciton-polariton systems, opening doors to exceptionally high-speed and tunable valleytronic devices.
Unlocking Correlated Quantum States in 2D Materials
A new review details how advanced spectroscopic techniques are revealing the behavior of interacting excitons within the unique structure of Ruddlesden-Popper metal halides.
Untangling Disorder: The Geometry of Spin Glasses
A new review explores the complex energy landscapes of spin glasses and the algorithms used to navigate them, revealing deep connections to the broader field of high-dimensional statistics.
Graphene’s Quantum Leap: Hall Effects at Millitesla Fields
Researchers have demonstrated a graphene-based heterostructure capable of exhibiting both integer and fractional quantum Hall effects at unprecedentedly low magnetic fields.
Beyond Born-Huang: Reframing Electron Transfer with Phase Space
A new approach to modeling electron transfer processes leverages phase space electronic structure to provide a more accurate depiction of molecular interactions.
Beyond Einstein: Mapping the Boundaries of Weyl Gravity
A new analysis clarifies the Hamiltonian structure and conserved charges of Weyl-transverse gravity, revealing key differences from General Relativity and potential insights into black hole thermodynamics.