Tootfinder

A Discrete Analog of Tutte's Barycentric Embeddings on Surfaces
\'Eric Colin de Verdi\`ere, Vincent Despr\'e, Lo\"ic Dubois
https://arxiv.org/abs/2507.13096

A Discrete Analog of Tutte's Barycentric Embeddings on Surfaces
Tutte's celebrated barycentric embedding theorem describes a natural way to build straight-line embeddings (crossing-free drawings) of a (3-connected) planar graph: map the vertices of the outer face to the vertices of a convex polygon, and ensure that each remaining vertex is in convex position, namely, a barycenter with positive coefficients of its neighbors. Actually computing an embedding then boils down to solving a system of linear equations. A particularly appealing feature of this metho…

Work Function Mapping Across a-In2Se3 to {\alpha}-In2Se3 to {\gamma}-InSe in RF-Sputtered Thin Films
Marius O. Eji, Md. Sakauat Hasan Sakib, Joseph P. Corbett
https://arxiv.org/abs/2510.08767

Work Function Mapping Across a-In2Se3 to α-In2Se3 to γ-InSe in RF-Sputtered Thin Films
Indium selenide is a phase-change chalcogenide whose polymorphism enables a variety of physical properties to be tuned. Here we directly quantify the evolution of the surface work function across the amorphous-to-crystalline transition in RF-sputtered In2Se3 thin films grown on c-plane Al2O3 (001). By varying deposition temperature (100-500 °C) and film thickness, we establish processing windows for a- In2Se3, α-In2Se3, and γ-InSe, and correlate structure with electronic and morphological pr…

🪙 Polymer-protected DNA sensors enable two-month storage for 50-cent disease diagnostics
#dna…

Polymer-protected DNA sensors enable two-month storage for 50-cent disease diagnostics
Using an inexpensive electrode coated with DNA, MIT researchers have designed disposable diagnostics that could be adapted to detect a variety of diseases, including cancer or infectious diseases such as influenza and HIV.

Effective-medium theory for elastic systems with correlated disorder
Jorge M. Escobar-Agudelo, Rui Aquino, Danilo B. Liarte
https://arxiv.org/abs/2510.02090 https://

Effective-medium theory for elastic systems with correlated disorder
Correlated structures are intimately connected to intriguing phenomena exhibited by a variety of disordered systems such as soft colloidal gels, bio-polymer networks and colloidal suspensions near a shear jamming transition. The universal critical behavior of these systems near the onset of rigidity is often described by traditional approaches as the coherent potential approximation - a versatile version of effective-medium theory that nevertheless have hitherto lacked key ingredients to descri…

Maximal optical chirality via mode coupling in bilayer metasurfaces
Brijesh Kumar, Ivan Toftul, Anshuman Kumar, Maxim Gorkunov, Yuri Kivshar
https://arxiv.org/abs/2507.17428 htt…

Maximal optical chirality via mode coupling in bilayer metasurfaces
Recent advances in the physics of resonant optical metasurfaces allowed to realize the so-called {\it maximum chirality} of planar structures by engineering their geometric parameters. Here we employ bilayer membrane metasurfaces with a square lattice of rotated C$_4$-symmetric holes and uncover very different scenarios of chirality maximization by virtue of strong coupling of photonic eigenmodes of the membranes supplemented by smart engineering of dissipation losses. Our findings substantiall…