Blog
Wafer-Scale Characterization of Al/AlxOy/Al Josephson Junctions at Room Temperature
Josephson junctions (JJs) are the key element of many devices operating at cryogenic temperatures. Development of time-efficient wafer-scale JJ characterization for process optimization and control of JJ fabrication is essential. Such statistical characterization has to rely on room temperature techniques since cryogenic...
Moving mountains: grazing agents drive terracette formation on steep hillslopes
Terracettes, striking, step-like landforms that stripe steep, vegetated hillslopes, have puzzled scientists for more than a century. Competing hypotheses invoke either slow mass-wasting or the relentless trampling of grazing animals, yet no mechanistic model has linked hoof-scale behavior to landscape-scale form. Here...
Evaluating Meta-Regression Techniques: A Simulation Study on Heterogeneity in Location and Time
In questo documento, we conduct a simulation study to evaluate conventional meta-regression approaches (study-level random, fixed, and mixed effects) against seven methodology specifications new to meta-regressions that control joint heterogeneity in location and time (including a new one that we introduce). We...
Decidability Problems for Micro-Stipula
Micro-Stipula is a stateful calculus in which clauses can be activated either through interactions with the external environment or by the evaluation of time expressions. Despite the apparent simplicity of its syntax and operational model, the combination of state evolution, time reasoning,...
Electronic Paddlewheels Impact the Dynamics of Superionic Conduction in AgI
Solid-state ion conductors hold promise as next generation battery materials. To realize their full potential, an understanding of atomic-scale ion conduction mechanisms is needed, including ionic and electronic degrees of freedom. Molecular simulations can create such an understanding, Tuttavia, including a description...
Hawking-Rényi black hole thermodynamics, Kiselev solution, and cosmic censorship
Explicit example, where the Hawking temperature of a black hole horizon is compatible with the black hole’s R\’enyi entropy thermodynamic description, is constructed. It is shown that for every static, spherically symmetric, vacuum black hole space-time, a corresponding black hole solution can...
Sorting as Gradient Flow on the Permutohedron
We investigate how sorting algorithms efficiently overcome the exponential size of the permutation space. Our main contribution is a new continuous-time formulation of sorting as a gradient flow on the permutohedron, yielding an independent proof of the classical $\Omega(n \log n)$ lower...
Detecting Cosmological Phase Transitions with Taiji: Sensitivity Analysis and Parameter Estimation
We investigate the capability of the Taiji space-based gravitational wave observatory to detect stochastic gravitational wave backgrounds produced by first-order phase transitions in the early universe. Using a comprehensive simulation framework that incorporates realistic instrumental noise, galactic double white dwarf confusion noise,...
Mixing Data-Driven and Physics-Based Constitutive Models using Uncertainty-Driven Phase Fields
There is a high interest in accelerating multiscale models using data-driven surrogate modeling techniques. Creating a large training dataset encompassing all relevant load scenarios is essential for a good surrogate, yet the computational cost of producing this data quickly becomes a limiting...
Modeling of Experimentally Observed Two-Dimensional Precursor Solitons in a Dusty Plasma by the forced Kadomtsev-Petviashvili Equation
We compare model solutions of a forced Kadomtsev-Petviashvili (fKP) equation with experimental observations of dust acoustic precursor solitons excited by a supersonically moving charged cylindrical object in a dusty plasma medium. The fKP equation is derived from a three-fluid-Poisson model of the...