Zobrazeno 1 - 10
of 16 839
pro vyhledávání: '"Kugler, A"'
The Fermi-edge singularity in x-ray absorption spectra of metals is a paradigmatic case of a logarithmically divergent perturbation series. Prior work has thoroughly analyzed the leading logarithmic terms. Here, we investigate the perturbation theory
Externí odkaz:
http://arxiv.org/abs/2411.07226
Autor:
Schneider, David, Reiß, Simon, Kugler, Marco, Jaus, Alexander, Peng, Kunyu, Sutschet, Susanne, Sarfraz, M. Saquib, Matthiesen, Sven, Stiefelhagen, Rainer
Exploring the intricate dynamics between muscular and skeletal structures is pivotal for understanding human motion. This domain presents substantial challenges, primarily attributed to the intensive resources required for acquiring ground truth musc
Externí odkaz:
http://arxiv.org/abs/2411.00128
Autor:
Grundner, Martin, Kugler, Fabian B., Parcollet, Olivier, Schollwöck, Ulrich, Georges, Antoine, Hampel, Alexander
We show that the remarkably small Fermi-liquid coherence scale and large effective mass observed in LiV$_2$O$_4$ are due to the proximity of a Hund-assisted orbital-selective Mott state. Our work is based on an ab initio dynamical mean-field approach
Externí odkaz:
http://arxiv.org/abs/2409.17268
Autor:
Elboher, Yizhak Y., Raviv, Avraham, Weiss, Yael Leibovich, Cohen, Omer, Assa, Roy, Katz, Guy, Kugler, Hillel
Deep neural networks (DNNs) are widely used in real-world applications, yet they remain vulnerable to errors and adversarial attacks. Formal verification offers a systematic approach to identify and mitigate these vulnerabilities, enhancing model rob
Externí odkaz:
http://arxiv.org/abs/2407.01295
Zero-shot prompt-based classification: topic labeling in times of foundation models in German Tweets
Filtering and annotating textual data are routine tasks in many areas, like social media or news analytics. Automating these tasks allows to scale the analyses wrt. speed and breadth of content covered and decreases the manual effort required. Due to
Externí odkaz:
http://arxiv.org/abs/2406.18239
Autor:
Ritz, Nepomuk, Ge, Anxiang, Walter, Elias, Aguirre, Santiago, von Delft, Jan, Kugler, Fabian B.
We provide a detailed exposition of our computational framework designed for the accurate calculation of real-frequency dynamical correlation functions of the single-impurity Anderson model (AM) in the regime of weak to intermediate coupling. Using q
Externí odkaz:
http://arxiv.org/abs/2405.20996
Autor:
Hütner, Johanna I., Conti, Andrea, Kugler, David, Mittendorfer, Florian, Kresse, Georg, Schmid, Michael, Diebold, Ulrike, Balajka, Jan
Publikováno v:
Science 385, 6714, 1241-1244 (2024)
Macroscopic properties of materials stem from fundamental atomic-scale details, yet for insulators, resolving surface structures remains a challenge. The basal (0001) plane of ${\alpha}$-Al$_{2}$O$_{3}$ was imaged with noncontact atomic force microsc
Externí odkaz:
http://arxiv.org/abs/2405.19263
Autor:
Dirnböck, Selina, Lee, Seung-Sup B., Kugler, Fabian B., Huber, Sebastian, von Delft, Jan, Held, Karsten, Wallerberger, Markus
Two-particle response functions are a centerpiece of both experimental and theoretical quantum many-body physics. Yet, due to their size and discontinuity structure, they are challenging to handle numerically. Recently, two advances were made to tack
Externí odkaz:
http://arxiv.org/abs/2404.05541
Autor:
Manes, Itay, Ronn, Naama, Cohen, David, Ber, Ran Ilan, Horowitz-Kugler, Zehavi, Stanovsky, Gabriel
Ensuring the accuracy of responses provided by large language models (LLMs) is crucial, particularly in clinical settings where incorrect information may directly impact patient health. To address this challenge, we construct K-QA, a dataset containi
Externí odkaz:
http://arxiv.org/abs/2401.14493
Publikováno v:
Phys. Rev. B 110, 155101 (2024)
The Hund-metal route to strong correlations continues to attract large interest in the condensed-matter community. The question arose to what extent it applies to the infinite-layer nickelates and, as a related question, to two-orbital systems in gen
Externí odkaz:
http://arxiv.org/abs/2312.11457