Tootfinder

Constraint on ultralight Nelson-Barr dark matter from time-dependent nuclear decay
Chang-Jie Dai, Tong Li
https://arxiv.org/abs/2506.22081 https://

Constraint on ultralight Nelson-Barr dark matter from time-dependent nuclear decay
Many experiments have notably reported anomalies in radioactive decay rates with periodic variations and challenged the traditional belief of time-independent decays. This periodicity could potentially be explained by the presence of a periodic dark matter (DM) candidate. In this work, we investigate the impact of time-dependent nuclear decay rates on the ultralight scalar DM in Nelson-Barr solution to the strong CP problem. The light scalar DM field in this framework induces periodic modulatio…

A small and interesting architecture for early fault-tolerant quantum computers
Jacob S. Nelson, Andrew J. Landahl, Andrew D. Baczewski
https://arxiv.org/abs/2507.20387 https://…

A small and interesting architecture for early fault-tolerant quantum computers
We present an architecture for early fault-tolerant quantum computers based on the smallest interesting colour code (Earl Campbell, 2016). It realizes a universal logical gate set consisting of single-qubit measurements and preparations in the X and Z bases, single- qubit Hadamard (H) gates, and three-qubit controlled-controlled-Z (CCZ) gates. State teleportations between [[4, 2, 2]] (2D) and [[8, 3, 2]] (3D) error-detecting color codes allow one to make use of the respective transversal H and …

Well, we have some advance notice. Can we take advantage? Can we find some candidate not deluded by the neoliberal myth, the simplistic YIMBY faith that the market will provide affordable housing?
https://bsky.app/profile/laurajnelson.bsky.social/post/3lsmkny…

Ray-tracing image simulations of transparent objects with complex shape and inhomogeneous refractive index
Armin Kalita, Bryan Oller, Thomas Paula, Alexander Bu{\ss}mann, Sebastian Marte, Gabriel Blaj, Raymond G. Sierra, Sandra Mous, Kirk A. Larsen, Xinxin Cheng, Matt J. Hayes, Kelsey Banta, Stella Lisova, Peter Nguyen, Serge A. H. Guillet, Divya Thanasekaran, Silke Nelson, Mengning Liang, Stefan Adami, Nikolaus A. Adams, Claudiu A. Stan

Ray-tracing image simulations of transparent objects with complex shape and inhomogeneous refractive index
Optical images of transparent three-dimensional objects can be different from a replica of the object's cross section in the image plane, due to refraction at the surface or in the body of the object. Simulations of the object's image are thus needed for the visualization and validation of physical models, but previous image simulations for fluid dynamics showed significant differences from experiments. We report ray tracing image simulations that replicate with high fidelity brightfield micros…

Calamus 44 Here my last words
In which the poet outs himself through talking about his poetry.
It's a short piece of Whitman talking about his own writing. But he's so twisted up!
Here I shade down and hide my thoughts—I do not expose them,
And yet they expose me more than all my other poems.
I read this as him talking about Calamus, the cluster of gay poems. And directly telling us that he's censored and hidden what he really wants to say. And yet still these poems still expose his true self. It makes me feel sad for Whitman, imagine his writing if he felt less fettered.
Still, he published some of the most clear gay poems of the 19th century. And got famous and mainstream doing it.

First coordinated observations between Solar Orbiter and the Daniel K. Inouye Solar Telescope
Krzysztof Barczynski, Miho Janvier, Chris J. Nelson, T. Schad, A. Tritschler, Louise Harra, Daniel M\"uller, Susanna Parenti, Gherardo Valori, Gianna Cauzzi, Yingjie Zhu
https://arxiv.org/abs/2507.19198…

First coordinated observations between Solar Orbiter and the Daniel K. Inouye Solar Telescope
Solar Orbiter and the Daniel K. Inouye Solar Telescope (DKIST) are two of the newest facilities available to the solar physics community. The first coordinated observations of the Sun by these two facilities occurred over the course of one week in October 2022. The returned data are open-access and will provide a valuable resource to researchers in the field. We provide an overview of the datasets collected by Solar Orbiter and DKIST through this coordination and discuss their scientific pote…

Magnetic fields in the intracluster medium with TNG-Cluster: properties, morphology, and tangential anisotropy
Katrin Lehle, Mateusz Ruszkowski, Dylan Nelson, Marine Prunier, Annalisa Pillepich
https://arxiv.org/abs/2507.12517

Magnetic fields in the intracluster medium with TNG-Cluster: properties, morphology, and tangential anisotropy
We characterize the magnetic field properties of 352 massive galaxy clusters from the TNG-Cluster magnetohydrodynamical cosmological simulation with a focus on central magnetic field morphology in cool-core (CC) vs non-cool-core (NCC) clusters. We present the central values and radial profiles of magnetic field strength and plasma parameter as a function of mass, cooling status and redshift. Compared to low-redshift observations, TNG-Cluster produces reasonable magnetic field amplitudes in the …

Impacts of internal heating on temperature distribution in channels
Lubom\'ir Bure\v{s}, Per Nilsson
https://arxiv.org/abs/2507.08515 https://

Impacts of internal heating on temperature distribution in channels
In molten-salt-fuelled reactor systems, the fluid may experience substantial volumetric heat generation in addition to heat removal from surrounding structures. To quantify these effects, we investigate developed channel flow with internal heating using a systematic multi-scale approach comprising Direct Numerical Simulation (DNS), Large Eddy Simulation (LES), and a semi-analytical solver (SAS). First, DNS and LES are compared in a turbulent parallel-plate configuration at different Prandtl and…

Terahertz field-induced metastable magnetization near criticality in FePS3
Batyr Ilyas, Tianchuang Luo, Alexander von Hoegen, Emil Vi\~nas Bostr\"om, Zhuquan Zhang, Jaena Park, Junghyun Kim, Je-Geun Park, Keith A. Nelson, Angel Rubio, Nuh Gedik
https://arxiv.org/abs/2507.06371

Terahertz field-induced metastable magnetization near criticality in FePS3
Controlling the functional properties of quantum materials with light has emerged as a frontier of condensed-matter physics, leading to the discovery of various light-induced phases of matter, such as superconductivity, ferroelectricity, magnetism and charge density waves. However, in most cases, the photoinduced phases return to equilibrium on ultrafast timescales after the light is turned off, limiting their practical applications. Here we use intense terahertz pulses to induce a metastable m…

Calamus 28 When I peruse the conquered fame of heroes
My surface reading is this is a celebration of the common man, perhaps soldiers, over the more famous generals and presidents. But this commentary encourages me to dig deeper.
First, to highlight the gay text...
the brotherhood of lovers ... Through youth, and through middle and old age, how unfaltering, how affectionate and faithful they were
Very homoromantic language! Male lovers who stay together through their whole lives, affectionate.
The last fillip here is Whitman's own stance: "pensive... filled with the bitterest envy". Whitman admires these lovers and envies them. That's a striking feeling to disclose!