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pro vyhledávání: '"Kusch A"'
The numerical method of dynamical low-rank approximation (DLRA) has recently been applied to various kinetic equations showing a significant reduction of the computational effort. In this paper, we apply this concept to the linear Boltzmann-Bhatnagar
Externí odkaz:
http://arxiv.org/abs/2411.06844
Autor:
Boonkkamp, J. H. M. ten Thije, Mitra, K., Anthonissen, M. J. H., Kusch, L., Braam, P. A., IJzerman, W. L.
We present a systematic derivation of three mathematical models of increasing complexity for optical design, based on Hamilton's characteristic functions and conservation of luminous flux, and briefly explain the connection with the mathematical theo
Externí odkaz:
http://arxiv.org/abs/2411.00758
This paper introduces a novel neural network-based approach to solving the Monge-Amp\`ere equation with the transport boundary condition, specifically targeted towards optical design applications. We leverage multilayer perceptron networks to learn a
Externí odkaz:
http://arxiv.org/abs/2410.19496
Autor:
Schotthöfer, Steffen, Zangrando, Emanuele, Ceruti, Gianluca, Tudisco, Francesco, Kusch, Jonas
Low-Rank Adaptation (LoRA) has become a widely used method for parameter-efficient fine-tuning of large-scale, pre-trained neural networks. However, LoRA and its extensions face several challenges, including the need for rank adaptivity, robustness,
Externí odkaz:
http://arxiv.org/abs/2410.18720
Computing the dominant eigenvalue is important in nuclear systems as it determines the stability of the system (i.e. whether the system is sub or supercritical). Recently, the work of Kusch, Whewell, McClarren and Frank \cite{KWMF} showed that perfor
Externí odkaz:
http://arxiv.org/abs/2409.14938
Autor:
Juergensen, Sabrina, Marceau, Jean-Baptiste, Mueller, Chantal, Barros, Eduardo B., Kusch, Patryk, Setaro, Antonio, Gaufrès, Etienne, Reich, Stephanie
Nanotubes align molecules into one dimensional chains creating collective states through the coupling of the molecular transition dipole moments. These collective excitations have strong fluorescence, narrow bandwidth, and shifted emission/absorption
Externí odkaz:
http://arxiv.org/abs/2408.15885
Autor:
Kusch, Patryk, Arcos, Jose Pareja, Tsarapkin, Aleksei, Deinhart, Victor, Harbauer, Karsten, Höflich, Katja, Reich, Stephanie
Near-field optical microscopy and spectroscopy provide high-resolution imaging below the diffraction limit, crucial in physics, chemistry, and biology for studying molecules, nanoparticles, and viruses. These techniques use a sharp metallic tip of an
Externí odkaz:
http://arxiv.org/abs/2408.11534
Autor:
Prot, Aubin JC. M., Melchiorre, Michele, Schaaf, Tilly, Poeira, Ricardo G., Elanzeery, Hossam, Lomuscio, Alberto, Oueslati, Souhaib, Zelenina, Anastasia, Dalibor, Thomas, Kusch, Gunnar, Hu, Yucheng, Oliver, Rachel A., Siebentritt, Susanne
Alloying small quantities of silver into Cu(In,Ga)Se2 was shown to improve the efficiency for wide and low band gap solar cells. We study low band gap industrial Cu(In,Ga)(S,Se)2 absorbers, substituting less than 10% of the copper with silver, using
Externí odkaz:
http://arxiv.org/abs/2403.04394
Autor:
Kusch, Jonas
Due to its reduced memory and computational demands, dynamical low-rank approximation (DLRA) has sparked significant interest in multiple research communities. A central challenge in DLRA is the development of time integrators that are robust to the
Externí odkaz:
http://arxiv.org/abs/2403.02834
The thermal radiative transfer equations model temperature evolution through a background medium as a result of radiation. When a large number of particles are absorbed in a short time scale, the dynamics tend to a non-linear diffusion-type equation
Externí odkaz:
http://arxiv.org/abs/2402.16746