Tootfinder

Ground states of the planar nonlinear Schr\"odinger--Newton system with a point interaction
Gustavo de Paula Ramos
https://arxiv.org/abs/2506.18202 ht…

Ground states of the planar nonlinear Schrödinger--Newton system with a point interaction
We establish sufficient conditions for the existence of ground states of the following normalized nonlinear Schrödinger--Newton system with a point interaction: \[ \begin{cases} - Δ_αu = w u + βu |u|^{p - 2} &\text{on} ~ \mathbb{R}^2; \\ - Δw = 2 π|u|^2 &\text{on} ~ \mathbb{R}^2; \\ \|u\|_{L^2}^2 = c, \end{cases} \] where $p > 2$; $α, β\in \mathbb{R}$ and $- Δ_α$ denotes the Laplacian of point interaction with scattering length $(- 2 πα)^{- 1}$. Additio…

ChatGPT Agent uses a virtual browser to do tasks such as filling online forms and calling public APIs, and generates downloadable PowerPoint and Excel files (Reece Rogers/Wired)
https://www.wired.com/story/openai-chatgpt-agent-launch/

OpenAI’s New ChatGPT Agent Tries to Do It All
It’s a PowerPoint generator! It’s a date-night planner! It’s … another agent from OpenAI.

Sichere Akkus: Lithium-Metall-Batterien mit integriertem Flammschutzmittel
Lithium-Metall-Batterien sind energiereich, können jedoch bei Überhitzung schnell in Brand geraten. Ein Polymer soll das verhindern.

Approximate polymorphisms of predicates
Yaroslav Alekseev, Yuval Filmus
https://arxiv.org/abs/2506.12155 https://arxiv.org/pdf/2506.1…

Approximate polymorphisms of predicates
A generalized polymorphism of a predicate $P \subseteq \{0,1\}^m$ is a tuple of functions $f_1,\dots,f_m\colon \{0,1\}^n \to \{0,1\}$ satisfying the following property: If $x^{(1)},\dots,x^{(m)} \in \{0,1\}^n$ are such that $(x^{(1)}_i,\dots,x^{(m)}_i) \in P$ for all $i$, then also $(f_1(x^{(1)}),\dots,f_m(x^{(m)})) \in P$. We show that if $f_1,\dots,f_m$ satisfy this property for most $x^{(1)},\dots,x^{(m)}$ (as measured with respect to an arbitrary full support distribution $μ$ on $P$), th…

Chemical vapor deposition synthesis of (GeTe)n(Sb2Te3) gradient crystalline films as promising planar heterostructures
M. Zhezhu, A. Vasil'ev, M. Yapryntsev, E. Ghalumyan, D. A. Ghazaryan, H. Gharagulyan
https://arxiv.org/abs/2507.12888

Chemical vapor deposition synthesis of (GeTe)n(Sb2Te3) gradient crystalline films as promising planar heterostructures
Phase-change materials of the (GeTe)n (Sb2Te3) (GST) system are of high relevance in memory storage and energy conversion applications due to their fast-switching speed, high data retention, and tunable properties. Here, we report on a fast and efficient CVD-based method for the fabrication of crystalline GST films with variable Ge/Sb atomic content. In particular, the approach enables compositional control without changing the precursor, facilitating a gradient synthesis of Ge3Sb2Te6, Ge2Sb2Te…

Space-filling efficiency and optical properties of hemoglycin
Julie E M McGeoch, Malcolm W McGeoch
https://arxiv.org/abs/2507.10612 https://

Space-filling efficiency and optical properties of hemoglycin
The empty, extensive low-density lattice topology of hemoglycin is examined to understand how in space, and possibly as early as 800M years into cosmic time a rod-like polymer of glycine and iron came into dominance. A central question to be answered is whether the hemoglycin rod lattice with diamond 2H symmetry represents the most efficient covering of space by a regular arrangement of identical rods. Starting from the tetrahedral symmetry of every hemoglycin lattice vertex we find that the re…

Simulation of irradiated hybrid planar pixels modules at fluences expected at HL-LHC
Marco Bomben
https://arxiv.org/abs/2506.10823 https://

Simulation of irradiated hybrid planar pixels modules at fluences expected at HL-LHC
Signal loss is the main limitation on tracking/vertexing performance due to radiation damage effect to hybrid pixel detectors when irradiated at fluences expected at High Luminosity LHC (HL-LHC). It is important to have reliable predictions on the charge collection performance after irradiation in order to predict operational voltage values and test tracking algorithms robustness. In this paper the validation of combined TCAD and Monte Carlo simulations of hybrid silicon planar pixels sensors w…

Analytic model for neutral penetration and plasma fueling
George J. Wilkie
https://arxiv.org/abs/2506.10906 https://arxiv.org/pdf/250…

Analytic model for neutral penetration and plasma fueling
Neutral atoms recycled from wall interaction interact with confined plasma, thereby refueling it, most strongly in the region closest to the wall. This occurs near the X-point in diverted configurations, or else near the wall itself in limited configurations. A progression of analytic models are developed for neutral density in the vicinity of a planar or linear source in an ionizing domain. First-principles neutral transport simulations with DEGAS2 are used throughout to test the validity and …

Geometry-Dependent Adhesion in Transparent, Monodomain Liquid Crystal Elastomers
Aidan Street, Devesh Mistry, Johan Mattsson, Helen F. Gleeson
https://arxiv.org/abs/2507.07639

Geometry-Dependent Adhesion in Transparent, Monodomain Liquid Crystal Elastomers
Elastomeric pressure-sensitive adhesives (PSAs) form adhesive bonds under light pressure. Liquid crystal elastomers (LCEs) are exciting PSA candidates as they can impart both anisotropy and temperature-dependence to adhesion, but the full potential of their anisotropic adhesion is unexplored. Here, identical side-chain LCEs, produced as transparent isotropic or nematic films are investigated; the latter aligned in homeotropic or planar geometries. Their room-temperature adhesion, determined thr…

Rethinking cryptophane A for methane gas sensing: cross sensitivity to N2 and CO2 at ambient conditions
Sebasti\'an Alberti, Thierry Brotin, Jana J\'agersk\'a
https://arxiv.org/abs/2507.10558

Rethinking cryptophane A for methane gas sensing: cross sensitivity to N2 and CO2 at ambient conditions
Since the affinity of Cryptophane-A for methane was first reported in 1993, cryptophane-doped polymer films have been extensively studied as enrichment cladding layers in plasmonic, fiber-optic, and integrated waveguide-based optical sensors. While the use of cryptophane-doped layers has improved methane sensitivity compared to undoped claddings, controversy has grown over the years regarding their claimed selectivity and practical applicability. Key questions remain unresolved, including the e…