Tootfinder

Effect of eigenstates on spectra in coupled-channel scattering with the chiral unitary model
Takuma Nishibuchi, Tetsuo Hyodo
https://arxiv.org/abs/2507.18941 https://

Effect of eigenstates on spectra in coupled-channel scattering with the chiral unitary model
In recent years, as experimental data on the excited $Ξ(1620)$ and $Ξ(1690)$ states have accumulated, theoretical analyses based on chiral dynamics have also been actively pursued. In this study, we construct theoretical models within the chiral unitary approach to reproduce recent experimental data, and perform a model interpolation to examine the relationship between the poles appearing in different models. We then calculate the invariant mass spectra of the $π^+Ξ^-$ system in the $Ξ_c \…

Institutional Noise, Strategic Deviation, and Intertemporal Collapse: A Formal Model of Miner Behaviour under Protocol Uncertainty
Craig Steven Wright
https://arxiv.org/abs/2506.20992

Institutional Noise, Strategic Deviation, and Intertemporal Collapse: A Formal Model of Miner Behaviour under Protocol Uncertainty
This paper develops a formal game-theoretic model to examine how protocol mutability disrupts cooperative mining behaviour in blockchain systems. Using a repeated game framework with stochastic rule shocks, we show that even minor uncertainty in institutional rules increases time preference and induces strategic deviation. Fixed-rule environments support long-term investment and stable equilibrium strategies; in contrast, mutable protocols lead to short-termism, higher discounting, and collapse…

Impact of the damping function in dispersion-corrected density functional theory on the properties of liquid water
K. Nikolas Lausch, Redouan El Haouari, Daniel Trzewik, J\"org Behler
https://arxiv.org/abs/2506.20371

Impact of the damping function in dispersion-corrected density functional theory on the properties of liquid water
Accounting for dispersion interactions is essential in approximate density functional theory (DFT). Often, a correction potential based on the London formula is added, which is damped at short distances to avoid divergence and double counting of interactions treated locally by the exchange-correlation functional. Most commonly, two forms of damping, known as zero- and Becke-Johnson (BJ)-damping, are employed and it is generally assumed that the choice has only a minor impact on performance even…

Metallic species in interstellar medium: Astrochemical modeling
Ankan Das, Milan Sil, Paola Caselli
https://arxiv.org/abs/2506.19463 https://

Metallic species in interstellar medium: Astrochemical modeling
Metal-bearing species in diffuse or molecular clouds are often overlooked in astrochemical modeling except for the charge exchange process. However, catalytic cycles involving these metals can affect the abundance of other compounds. We prepared a comprehensive chemical network for Na, Mg, Al, Fe, K, and Si-containing species. Assuming water as the major constituent of interstellar ice in dark clouds, quantum chemical calculations were carried out to estimate the binding energy of important met…

Unconventional Thermalization of a Localized Chain Interacting with an Ergodic Bath
Konrad Pawlik, Nicolas Laflorencie, Jakub Zakrzewski
https://arxiv.org/abs/2507.18286 https:/…

Unconventional Thermalization of a Localized Chain Interacting with an Ergodic Bath
The study of many-body localized (MBL) phases intrinsically links spectral properties with eigenstate characteristics: localized systems exhibit Poisson level statistics and area-law entanglement entropy, while ergodic systems display volume-law entanglement and follow random matrix theory predictions, including level repulsion. Here, we introduce the interacting Anderson Quantum Sun model, which significantly deviates from these conventional expectations. In addition to standard localized and …

Prestige in Numbers: How Test Scores and Choices Reveal School Rankings
Federico Echenique, Michael Olabisi
https://arxiv.org/abs/2505.21063 https://

Prestige in Numbers: How Test Scores and Choices Reveal School Rankings
This paper introduces a novel revealed-preference approach to ranking colleges and professional schools based on applicants' choices and standardized test scores. Unlike traditional rankings that rely on data supplied by institutions or expert opinions, our methodology leverages the decentralized beliefs of potential students, as revealed through their application decisions. We develop a theoretical model where students with higher test scores apply to more selective institutions, allowing us t…

As we prepare for the ngscopeclient v0.1 release, I'd like to actually commission a proper application icon.
We're in initial talks with one designer but they're just a general icon/branding shop and have no specific EE experience so they'll need somewhat specific guidelines of what we want the icon to depict.
Does anyone have suggestions on what the icon should look like? Sketches, concepts, text descriptions, whatever are all very much of interest.

When Experimental Economics Meets Large Language Models: Tactics with Evidence
Shu Wang, Zijun Yao, Shuhuai Zhang, Jianuo Gai, Tracy Xiao Liu, Songfa Zhong
https://arxiv.org/abs/2505.21371

When Experimental Economics Meets Large Language Models: Tactics with Evidence
Advancements in large language models (LLMs) have sparked a growing interest in measuring and understanding their behavior through experimental economics. However, there is still a lack of established guidelines for designing economic experiments for LLMs. By combining principles from experimental economics with insights from LLM research in artificial intelligence, we outline and discuss eight practical tactics for conducting experiments with LLMs. We further perform two sets of experiments to…

Production Heterogeneity in Collective Labor Supply Models with Children
Charles Gauthier
https://arxiv.org/abs/2507.18810 https://arxiv.org/pdf/2507.18810…

Production Heterogeneity in Collective Labor Supply Models with Children
Children welfare is at the center of many welfare reforms such as cash transfers to families and training programs to parents. A key goal for policy-makers is to evaluate the costs and benefits of such reforms. The main challenge lies in that the outcome of interest, children welfare, is unobservable. To address this issue, I consider a collective labor supply model with children where adult members have preferences over their own leisure, expenditures, and children welfare. I show that the mod…

International Trade and Intellectual Property
Gaetan de Rassenfosse
https://arxiv.org/abs/2506.18929 https://arxiv.org/pdf/2506.18929…

International Trade and Intellectual Property
Intellectual property (IP) rules have the potential to shape cross-border trade far more than their legalistic origins might suggest. Drawing on three decades of evidence, this review shows that stronger IP rights simultaneously create market-power forces that raise prices and market-expansion forces that broaden demand, while dynamic incentives spur quality upgrading and new export varieties. Micro-data and quasi-natural experiments after TRIPS reveal that IP most often boosts trade along the …