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My hob here is done. Und nächstes mal denk ich auch ans QWERTY :D

Spinless and spinful charge excitations in moir\'e Fractional Chern Insulators
Miguel Gon\c{c}alves, Juan Felipe Mendez-Valderrama, Jonah Herzog-Arbeitman, Jiabin Yu, Xiaodong Xu, Di Xiao, B. Andrei Bernevig, Nicolas Regnault
https://arxiv.org/abs/2506.05330

Spinless and spinful charge excitations in moiré Fractional Chern Insulators
Fractionally charged elementary excitations, the quasi-electron and quasi-hole, are one of the hallmarks of the fractional Chern insulator (FCI). In this work, we observe that spontaneous spin polarization in twisted MoTe$_2$ leads to multiple species of low-energy quasi-particles distinguished by their spin quantum numbers. We perform large-scale exact diagonalization (ED) calculations to investigate the nature of these excitations and develop a method to extract their fundamental energetic pr…

Unconventional Orbital Magnetism in Graphene-based Fractional Chern Insulators
Jian Xie, Zaizhe Zhang, Xi Chen, Yves H. Kwan, Zihao Huo, Jonah Herzog-Arbeitman, Liangliang Guo, Kenji Watanabe, Takashi Taniguchi, Kaihui Liu, X. C. Xie, B. Andrei Bernevig, Zhi-Da Song, Xiaobo Lu
https://arxiv.org/abs/2506.01485

Unconventional Orbital Magnetism in Graphene-based Fractional Chern Insulators
Orbital magnetism in graphene originates from correlation-driven spontaneous valley symmetry breaking1-7. It can lead to various anomalous transport phenomena such as integer and fractional quantum anomalous Hall effects8-11. In general, the in-plane magnetic field B|| primarily couples to the spin degrees of freedom in graphene and has long been presumed to have a negligible effect on orbital magnetism due to the ultra-weak spin-orbit coupling12-18. In this work, we report multiple u…

Imagine a movie theater where *every single seat* is named for a different director. Cinema Modernissimo, Bologna. #Italy25

Yesterday it was a whole calzone. Now it is half a calzone. In ten minutes it will be nothing.
- Werner Herzog says grace

LIGHTHOUSE: Fast and precise distance to shoreline calculations from anywhere on earth
Patrick Beukema, Henry Herzog, Yawen Zhang, Hunter Pitelka, Favyen Bastani
https://arxiv.org/abs/2506.18842

LIGHTHOUSE: Fast and precise distance to shoreline calculations from anywhere on earth
We introduce a new dataset and algorithm for fast and efficient coastal distance calculations from Anywhere on Earth (AoE). Existing global coastal datasets are only available at coarse resolution (e.g. 1-4 km) which limits their utility. Publicly available satellite imagery combined with computer vision enable much higher precision. We provide a global coastline dataset at 10 meter resolution, a 100+ fold improvement in precision over existing data. To handle the computational challenge of que…

Generic models of licci ideals parametrized by Schur functors
Lorenzo Guerrieri, Xianglong Ni, Jerzy Weyman
https://arxiv.org/abs/2506.09598 https://

Generic models of licci ideals parametrized by Schur functors
Let R be a commutative Noetherian ring. Licci ideals are the ideals of R that can be linked in a finite number of steps to a complete intersection. Each licci ideal admits a rigid deformation, and two licci ideals are in the same Herzog class if they have a common deformation. In this work, we show how all the Herzog classes of licci ideals of codimension 3 can be parametrized in terms of pairs of partitions associated to Schur functors. This fact allows to describe in a purely combinatorial wa…

A DC-Reformulation for Gradient-$L^0$-Constrained Problems in Function Spaces
Bastian Dittrich, Evelyn Herberg, Roland Herzog, Georg M\"uller
https://arxiv.org/abs/2506.11917

A DC-Reformulation for Gradient-$L^0$-Constrained Problems in Function Spaces
Cardinality constraints in optimization are commonly of $L^0$-type, and they lead to sparsely supported optimizers. An efficient way of dealing with these constraints algorithmically, when the objective functional is convex, is reformulating the constraint using the difference of suitable $L^1$- and largest-$K$-norms and subsequently solving a sequence of penalized subproblems in the difference-of-convex (DC) class. We extend this DC-reformulation approach to problems with $L^0$-type cardinalit…

The Urban Model Platform: A Public Backbone for Modeling and Simulation in Urban Digital Twins
Rico H Herzog, Till Degkwitz, Trivik Verma
https://arxiv.org/abs/2506.10964

The Urban Model Platform: A Public Backbone for Modeling and Simulation in Urban Digital Twins
Urban digital twins are increasingly perceived as a way to pool the growing digital resources of cities for the purpose of a more sustainable and integrated urban planning. Models and simulations are central to this undertaking: They enable "what if?" scenarios, create insights and describe relationships between the vast data that is being collected. However, the process of integrating and subsequently using models in urban digital twins is an inherently complex undertaking. It raises questions…