Fluid Quantum: Taming the Infinite in Perfect Flow
![The calculation of the momentum-space Wightman function, a critical component in understanding thermal fluctuations, reveals contributions arising from distinct phonon propagation pathways - those fully within the thermalized state ([latex]TTTT[/latex]), mixed thermal-local pathways ([latex]T L T L[/latex]), and entirely local, superfluid-like pathways ([latex]L L L L[/latex]) - each shaping the system’s response to disturbance.](https://arxiv.org/html/2512.23793v1/x1.png)
New research clarifies the quantum behavior of perfect fluids, offering a pathway to calculate observable properties despite the complexities of underlying quantum mechanics.
Science
Speeding Up the Search for Dark Matter
![The calculation of the thermally averaged effective cross section for a scalar particle-specifically one mirroring the quantum properties of up-type quarks-demonstrates that incorporating bound state formation, decay, and transitions among those states significantly alters predictions, a difference most pronounced when considering scenarios involving color-charged but electrically neutral particles at masses around [latex]10^6[/latex] GeV and employing running QCD and QED couplings.](https://arxiv.org/html/2512.23812v1/x1.png)
A new computational tool dramatically accelerates calculations of how dark matter particles interacted in the early universe, paving the way for more comprehensive cosmological modeling.
Beyond Equilibrium: How Anisotropic Flows Shape the Quark-Gluon Plasma
![A system driven from equilibrium by an influx of energy [latex]\Delta t[/latex] finds a holographic echo-a dual state mirroring its transient condition, suggesting that even fleeting imbalances leave indelible marks on the fabric of reality itself.](https://arxiv.org/html/2512.24909v1/IsotropicNonequilibriumState.png)
New research explores how non-equilibrium dynamics and directional flows profoundly impact the behavior of the ultra-hot matter created in heavy-ion collisions.
Spin Currents and Superconductivity: A Geometric Twist
A new semiclassical theory reveals how spin-orbit coupling shapes thermal and spin transport in proximitized superconductors, opening doors to novel thermo-spintronic devices.
Building Blocks of Reality: Combining Fields to Create Complex Solutions
![The evolving landscapes of kink orbits, charted across varying values of a constant [latex]CC[/latex] and differing widths σ, reveal how boundary and isolated topological defects-depicted in black-navigate a field of fixed (black) and variable (red) vacua, ultimately defining the stability and behavior of these complex formations.](https://arxiv.org/html/2512.23890v1/x12.png)
A new approach allows physicists to construct intricate field theories by merging simpler ones, focusing on maintaining and expanding the range of possible solutions.
Quarkonium in Motion: How Magnetic Fields Drive State Transitions
![The study demonstrates that a triangular magnetic-field pulse induces measurable Stückelberg oscillations-interference between amplitudes from two avoided crossings in the adiabatic energies [latex]E_{\pm}(t)[/latex]-resulting in a final transition probability that aligns with predictions from the Landau-Zener-Stückelberg (LZS) theory as a function of pulse duration [latex]t_{max}[/latex].](https://arxiv.org/html/2512.24072v1/x18.png)
New research details the dynamic behavior of quarkonium states as they respond to changing magnetic fields, revealing the crucial role of sweep rate and field shape.
Wormholes and the Fabric of Reality
![The geometry collapses to a conformal boundary defined by the limit of vanishing length [latex]\ell \to 0[/latex], ultimately manifesting as two four-spheres connected by a shared circle [latex]S^1[/latex]-a space upon which the delta operator resides, hinting at the fragile nature of theoretical constructs facing absolute limits.](https://arxiv.org/html/2512.24891v1/x1.png)
New research connects the geometry of wormholes to the mathematical structures of matrix models, offering insights into the holographic principle.
Fuzzy Physics, Sharp Results: A New Path to 3D Superconformal Symmetry
![The study of the 3D Ising Superconformal Field Theory reveals a spectrum of low-lying operators - conformal primary and descendant fields - obtained through a model Hamiltonian with both integer and half-integer angular momentum states, with the critical point determined by minimizing a cost function that normalizes the energy spectrum; the resulting operator dimensions, computed via conformal bootstrap, confirm the emergence of an [latex]\mathcal{N}=1[/latex] superconformal algebra, as evidenced by the connections between superconformal descendant states within the observed supermultiplets and the actions of conformal generators [latex]P_\mu[/latex] and [latex]K_\mu[/latex].](https://arxiv.org/html/2512.25054v1/x3.png)
Researchers have demonstrated how a microscopic model, regularized on a ‘fuzzy sphere’, gives rise to the predicted behavior of a 3D supersymmetric conformal field theory.
Feeling the Unruh Effect: Decoherence as a Potential Signal
![The model detector and electromagnetic field both exhibit predictable dissipation, decaying exponentially as described by the function [latex]e^{-\gamma(\tau)}[/latex] over time τ.](https://arxiv.org/html/2512.23888v1/Figures/EMF01.png)
New research suggests that the subtle quantum process of decoherence could provide a measurable signature of the Unruh effect, a long-predicted phenomenon linking acceleration and thermal radiation.
Giant Gravitons and the Holographic Dictionary
![The study explores the extremal three-point function by positioning a light operator on the Euclidean cap defining the initial state, effectively introducing a half-BPS operator at the south pole of [latex]S^4[/latex] and modulating the result with a phase factor derived from boundary propagation.](https://arxiv.org/html/2512.24979v1/pictures/extremal.png)
New research resolves long-standing ambiguities in calculating holographic correlators, bringing clarity to the interplay between gravity and quantum mechanics.