Search
Results
-
Scaling of Hybrid QDs-Graphene Photodetectors to Subwavelength Dimension
(2023)arXivEmerging colloidal quantum dot (cQD) photodetectors currently challenge established state-of-the-art infrared photodetectors in response speed, spectral tunability, simplicity of solution processable fabrication, and integration onto curved or flexible substrates. Hybrid phototransistors based on 2D materials and cQDs, in particular, are promising due to their inherent photogain enabling direct photosignal enhancement. The photogain is ...Working Paper -
Large-Scale Inference of Geo-Referenced Power Distribution Grids Using Open Data
(2023)TechRxivPower distribution grids host an increasing amount of distributed renewable generators, electric vehicles, and heat pumps worldwide. Distribution grids, however, were not designed with the goal of incorporating large shares of these technologies. These soaring challenges demand accurate and realistic grid models to assess the need for operation strategies and reinforcements that ensure reliable and economic management. Nevertheless, real ...Working Paper -
A causal modelling analysis of Bell scenarios in space-time: implications of jamming non-local correlations for relativistic causality principles
(2023)arXivBell scenarios involve space-like separated measurements made by multiple parties. The standard no-signalling constraints ensure that such parties cannot signal superluminally by choosing their measurement settings. In tripartite Bell scenarios, relaxed non-signalling constraints have been proposed, which permit a class of post-quantum theories known as jamming non-local theories. To analyse whether no superluminal signalling continues ...Working Paper -
Colloidal aziridinium lead bromide quantum dots
(2023)Research SquareThe compositional engineering of lead-halide perovskite nanocrystals (NCs) via the A-site cation represents a lever to fine-tune their structural and electronic properties. However, the presently available chemical space remains minimal since, thus far, only three A-site cations have been reported to favor the formation of stable lead-halide perovskite NCs, i.e., Cs⁺ , formamidinium (FA), and methylammonium (MA). Inspired by recent reports ...Working Paper -
Refinement Proofs in Rust Using Ghost Locks
(2023)Refinement transforms an abstract system model into a concrete, executable program, such that properties established for the abstract model carry over to the concrete implementation. Refinement has been used successfully in the development of substantial verified systems. Nevertheless, existing refinement techniques have limitations that impede their practical usefulness. Some techniques generate executable code automatically, which ...Working Paper -
Simulation of Aqueous Solutes Using the Adaptive Solvent-Scaling (AdSoS) Scheme
(2023)ChemRxivThe Adaptive Solvent-Scaling (AdSoS) scheme [J. Chem. Phys. 155 (2021) 094107] is an adaptive-resolution approach for performing simulations of a solute embedded in a fine- grained (FG) solvent region surrounded by a coarse-grained (CG) solvent region, with a continuous FG↔CG switching of the solvent resolution across a buffer layer. Instead of relying on a distinct CG solvent model, AdSoS is based on CG models defined by a dimensional ...Working Paper -
Unitary Complexity and the Uhlmann Transformation Problem
(2023)arXivState transformation problems such as compressing quantum information or breaking quantum commitments are fundamental quantum tasks. However, their computational difficulty cannot easily be characterized using traditional complexity theory, which focuses on tasks with classical inputs and outputs. To study the complexity of such state transformation tasks, we introduce a framework for unitary synthesis problems, including notions of ...Working Paper -
Navigating the Ocean of Biases: Political Bias Attribution in Language Models via Causal Structures
(2023)arXivThe rapid advancement of Large Language Models (LLMs) has sparked intense debate regarding their ability to perceive and interpret complex socio-political landscapes. In this study, we undertake an exploration of decision-making processes and inherent biases within LLMs, exemplified by ChatGPT, specifically contextualizing our analysis within political debates. We aim not to critique or validate LLMs' values, but rather to discern how ...Working Paper -
The ART of LLM Refinement: Ask, Refine, and Trust
(2023)arXivIn recent years, Large Language Models (LLMs) have demonstrated remarkable generative abilities, but can they judge the quality of their own generations? A popular concept, referred to as self-refinement, postulates that LLMs can detect and correct the errors in their generations when asked to do so. However, recent empirical evidence points in the opposite direction, suggesting that LLMs often struggle to accurately identify errors when ...Working Paper -
Designer Phospholipid Capping Ligands for Soft Metal Halide Nanocrystals
(2023)Research SquareThe success of colloidal semiconductor nanocrystals (NCs) in science and optoelectronics is inextricable from their surfaces. The functionalization of lead halide perovskite (LHP) NCs poses a formidable challenge due to their structural lability, unlike the well-established covalent ligandcapping of conventional semiconductor NCs. We posited that the vast and facile molecular engineering of phospholipids as zwitterionic surfactants can ...Working Paper