Tootfinder

Exact Solutions for Bimodal Distributions under Stochastic Plasma Irradiation in Thin Films
Joel Saucedo, Uday Lamba, Hasitha Mahabaduge
https://arxiv.org/abs/2507.07268

Exact Solutions for Bimodal Distributions under Stochastic Plasma Irradiation in Thin Films
A persistent paradox complicates the study of plasma-irradiated thin films, where bimodal grain distributions and ambiguous scaling laws, roughly shifting between $Φ^{-1/2}$ and $Φ^{-1}$, or a general inverse dependence on plasma flux, are empirical yet remain theoretically unreconciled. Existing models fail to unify noise-driven evolution, defect saturation kinetics, and nucleation-loss balance within a single, self-consistent formalism. This work resolves these discrepancies by developing t…

D.C. judge excoriates Trump policing surge, demands answers from Pirro
A federal magistrate judge overseeing a torrent of cases during President Donald Trump’s policing surge in D.C.
condemned administration officials at a hearing Thursday,
saying they were trampling people’s rights
by overcharging them with felonies and then moving slowly to dismiss the weakest cases
while the defendants languished in jail.

The blistering remarks by Magistrate Judge Zia …

D.C. judge excoriates Trump policing surge, demands answers from Pirro
Responding to Magistrate Judge Zia M. Faruqui’s remarks regarding President Donald Trump’s policing surge in D.C., U.S. Attorney Jeanine Pirro said the judge “has allowed his politics to consistently cloud his judgment.”

Nuclear fusion plasma fuelling with ice pellets using a neuromorphic controller
L. L. T. C. Jansen, E. Petri, M. van Berkel, W. P. M. H. Heemels
https://arxiv.org/abs/2509.02147

Nuclear fusion plasma fuelling with ice pellets using a neuromorphic controller
In reactor-grade tokamaks, pellet injection is the best candidate for core plasma fuelling. However, density control schemes that can handle the hybrid nature of this type of fuelling, i.e., the discrete impact of the pellets on the continuously evolving plasma density, are lacking. This paper proposes a neuromorphic controller, inspired by the integrate-and-fire neuronal model, to address this problem. The overall system is modelled as a hybrid system, and we analyse the proposed controller in…

Plasma visually bugged following an upgrade on FreeBSD
https://www.reddit.com/r/kde/comments/1lne10b/plasma_visually_bugged_following_an_upgrade_on/

Stimulated Brillouin Amplification with Flying Focus
Zhaohui Wu, Xiaoming Zeng, Zhaoli Li, Xiaodong Wang, Xiao Wang, Jie Mu, Yanlei Zuo, Kainan Zhou, Hao Peng, C. Riconda, S. Weber
https://arxiv.org/abs/2508.04121

Stimulated Brillouin Amplification with Flying Focus
Material damage thresholds pose a fundamental limit to chirped pulse amplification (CPA) in high-power laser systems. Plasma-based amplification via stimulated Brillouin scattering (SBS) offers a damage-free alternative, yet its effectiveness has been hindered by instabilities that constrain interaction length. In this study, we report the first experimental demonstration of SBS amplification driven by a flying focus in a 3-mm plasma channel. The flying focus is generated using chromatic aberra…

from my link log —
Tiling with three polygons is undecidable.
https://arxiv.org/abs/2409.11582
saved 2024-11-21 https://dotat.at/…

Tiling with Three Polygons is Undecidable
We prove that the following problem is co-RE-complete and thus undecidable: given three simple polygons, is there a tiling of the plane where every tile is an isometry of one of the three polygons (either allowing or forbidding reflections)? This result improves on the best previous construction which requires five polygons.

The liberal obsession with optics serves the right and persuades no one. There is literally an active ethnic cleansing happening in the US right now, and the only thing that matters is making that as hard as possible to carry out.
Anarchists destroying intelligence assets saves lives. Every escooter thrown at a cop car is one less escort for a goon too afraid to kidnap random brown people without being flanked by a branch full of bad apples. Spray paint is not violence. Vandalism is not violence. Community self defense in all forms is legitimate.
Make no mistake, these raids are about changing demographics. Demographic trends have been shifting blue for a long time, and the right has, for a long time, been blaming "white replacement." Conspiracy theory aside, Democrats have also been relying on the growth of black and brown voters as a block. The nuances of whiteness as an identity are lost on the current administration and their supporters. They see that "white people will be a minority by 2050" and equate that with the "end of Western Civilization."
The only way to "save Western Civilization" is to change those demographics. Forced birth and forced removal are two sides of the same white nationalist objective. Of course they can't have due process, because they need to be able to kidnap anyone who they see as a threat to their demographic future.
They don't care about optics. The plan is to murder away any threat and flood everyone else with propaganda. There is no mythical middle. There's no one unconvinced. They know this, but they win when democrats buy that myth and save the police the work of policing the protests.
If your protest is 90% "peaceful," they'll take pictures of the 10% that isn't. If it's 99% peaceful, they'll shoot rubber bullets and teargas until someone throws a brick and take 100 pictures from a dozen angles. If its 100% "peaceful" and no one can be provoked, they'll generate pictures with AI or photoshop like they did during the George Floyd uprising and the pictures from the CHOP/CHAZ. Do you have literally no memory?
#USPol #FiftyFiftyOne #50501movenent #resistance #NoKingsDay #NoKingsDayOfAction

Plasma Dynamics in Higher-Derivative Electrodynamics: A Renormalised Two-Loop Framework
Prabhat Singh, Punit Kumar
https://arxiv.org/abs/2508.01665 https://

Plasma Dynamics in Higher-Derivative Electrodynamics: A Renormalised Two-Loop Framework
We present a finite-temperature study of Bopp-Podolsky electrodynamics, following electron-proton plasmas through one- and two-loop order with dimensional regularisation and hard-thermal-loop resummation. The higher-derivative operator is found to generate no new ultraviolet divergences; all counter-terms reduce to the single photon wave-function factor of ordinary QED. The static inter-particle force acquires a double-Yukawa profile, the familiar Debye term plus an opposite-signed contribution…

Multi-messenger dynamic imaging of laser-driven shocks in water using a plasma wakefield accelerator
Mario D. Balcazar, Hai-En Tsai, Tobias Ostermayr, Paul T. Campbell, Qiang Chen, Cary Colgan, Gillis M. Dyer, Zachary Eisentraut, Eric Esarey, Cameron G. R. Geddes, Benjamin Greenwood, Anthony Gonsalves, Sahel Hakimi, Robert Jacob, Brendan Kettle, Paul King, Karl Krushelnick, Nuno Lemos, Eva Los, Yong Ma, Stuart P. D. Mangles, John Nees, Isabella M. Pagano, Carl Schroeder, Raspberry Simp…

Multi-messenger dynamic imaging of laser-driven shocks in water using a plasma wakefield accelerator
Understanding dense matter hydrodynamics is critical for predicting plasma behavior in environments relevant to laser-driven inertial confinement fusion. Traditional diagnostic sources face limitations in brightness, spatiotemporal resolution, and inability to detect relevant electromagnetic fields. In this work, we present a dual-probe, multi-messenger laser wakefield accelerator platform combining ultrafast X-rays and relativistic electron beams at 1 Hz, to interrogate a free-flowing water ta…

Favorable modifications of Scrape-Off Layer (SOL) heat flux width through pulsed fuelling in ADITYA-U Tokamak
SK Injamul Hoque (Institute for Plasma Research, Gandhinagar, India, Homi Bhabha National Institute, Mumbai, India), Harshita Raj (Institute for Plasma Research, Gandhinagar, India, Homi Bhabha National Institute, Mumbai, India), Ritu Dey (Department of Physics, Indian Institute of Technology Tirupati, Yerpedu, India), Soumitra Banerjee (Institute for Plasma Research, Gandhinag…

Favorable modifications of Scrape-Off Layer (SOL) heat flux width through pulsed fuelling in ADITYA-U Tokamak
Enhancement of the scrape-off layer (SOL) heat flux width has been observed in the ADITYA-U Tokamak following the injection of short fuel gas pulses. A notable reduction in parallel heat flux near the last closed flux surface (LCFS) is observed after each pulse. Comparative analysis indicates that pulsed fuelling is more effective in mitigating heat flux with improved core confinement than continuous gas feeding via real-time density control. Analytical and simulation works are also carried out…