Zobrazeno 1 - 10
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pro vyhledávání: '"Zaiser A"'
We study the problem of bounding the posterior distribution of discrete probabilistic programs with unbounded support, loops, and conditioning. Loops pose the main difficulty in this setting: even if exact Bayesian inference is possible, the state of
Externí odkaz:
http://arxiv.org/abs/2411.10393
The dynamics of dislocations can be formulated in terms of the evolution of continuous variables representing dislocation densities ('continuum dislocation dynamics'). We show for various variants of this approach that the resulting models can be env
Externí odkaz:
http://arxiv.org/abs/2410.17177
Autor:
Zaiser, Emmily, Trenti, Alessandro, Milovančev, Dinka, Vokić, Nemanja, Schrenk, Bernhard, Hübel, Hannes
The generation and detection of squeezed light through spontaneous parametric down-conversion in a nonlinear crystal up to a frequency of 3.5 GHz is presented. We characterize the quantum state with balanced homodyne detection, leveraging a low-noise
Externí odkaz:
http://arxiv.org/abs/2407.07588
We investigate interface failure of model materials representing architected thin films in contact with heterogeneous substrates. We find that, while systems with statistically isotropic distributions of impurities derive their fracture strength from
Externí odkaz:
http://arxiv.org/abs/2405.18994
Creep failure of hierarchical materials is investigated by simulation of beam network models. Such models are idealizations of hierarchical fibrous materials where bundles of load-carrying fibers are held together by multi-level (hierarchical) cross-
Externí odkaz:
http://arxiv.org/abs/2312.11680
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-15 (2024)
Abstract We investigate interface failure of model materials representing architected thin films in contact with heterogeneous substrates. We find that, while systems with statistically isotropic distributions of impurities derive their fracture stre
Externí odkaz:
https://doaj.org/article/943d5630c76c42cfbf6662527523fbb2
Autor:
Ritter, Jonas, Zaiser, Michael
Modeling dislocations is an inherently multiscale problem as one needs to simultaneously describe the high stress fields near the dislocation cores, which depend on atomistic length scales, and a surface boundary value problem which depends on bounda
Externí odkaz:
http://arxiv.org/abs/2306.05782
Publikováno v:
Advances in Neural Information Processing Systems 36 (NeurIPS 2023)
We present an exact Bayesian inference method for discrete statistical models, which can find exact solutions to a large class of discrete inference problems, even with infinite support and continuous priors. To express such models, we introduce a pr
Externí odkaz:
http://arxiv.org/abs/2305.17058
Autor:
Pournajar, Mahshid, Mäkinen, Tero, Hosseini, Seyyed Ahmad, Moretti, Paolo, Alava, Mikko, Zaiser, Michael
Quasi-brittle materials endowed with (statistically) self-similar hierarcical microstructures show distinct failure patterns that deviate from the standard scenario of damage accumulation followed by crack nucleation-and-growth. Here we study the fai
Externí odkaz:
http://arxiv.org/abs/2303.09214
The mechanical behavior of porous materials depends strongly on porosity and pore geometry, but also on morphological parameters characterizing the spatial arrangement of pores. Here we use bond-based peridynamics to study effects of disorder on the
Externí odkaz:
http://arxiv.org/abs/2301.12545