Onsager
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Related Articles from SNS
Onsager's Real Cavity model near solid interfaces
arXiv:2512.19714v2 Announce Type: replace-cross Abstract: We develop an extended Onsager real-cavity framework to describe the Casimir--Polder interaction of small molecules dissolved in dielectric liquids near planar interfaces. By analytically resolving the geometry of the cavity opening, we derive closed-form expressions that capture the modification of the interaction as the molecule approaches a surface and connect smoothly to the asymptotic medium-assisted limit. Using experimentally...
Quantum Walks for Chemical Reaction Networks
arXiv:2509.07890v2 Announce Type: replace-cross Abstract: Near a detailed-balance equilibrium, the perturbed mass-action dynamics of a chemical reaction network (CRN) map exactly onto an electrical-flow problem on the bipartite species-reaction graph: chemical potentials become electrical potentials, Onsager coefficients become conductances, and the instantaneous Gibbs free-energy consumption equals the dissipated electrical energy. We exploit this map to design quantum walk algorithms that...
Ferrofluids: Modeling and Approximation
Mathematics > Numerical Analysis [Submitted on 31 May 2026] Title:Ferrofluids: Modeling and Approximation View PDF HTML (experimental)Abstract:Starting from Maxwell's and linear momentum balance equations, we derive a ferrofluid model using the generalized Onsager's principle. Guided by a discrete perturbation estimate, we design and analyze families of Galerkin schemes that converge to sufficiently regular solutions and derive error estimates.
Cutting a photon in two creates an infinite swarm of particles
June 2, 2026 report Cutting a photon in two creates an infinite swarm of particles Sam Jarman Author Gaby Clark Scientific Editor Robert Egan Associate Editor By definition, elementary particles can't be broken into smaller pieces. But in a new theoretical study published in Physical Review Letters, Johannes Skaar and colleagues have revealed what would happen if you tried anyway for a single photon. The answer is deeply strange: attempting to cut a photon in two wouldn't produce two smaller...
Geometric Bounds on the Finite-Time Performance of Active Machines
Announce Type: cross Abstract: Optimizing energy conversion in active matter remains a central challenge in nonequilibrium physics. Here, we develop a unified thermodynamic framework that characterizes the finite-time performance of interacting active machines.