Tootfinder

Went to a board game cafe for the first time and it was a lot of fun. We played:
• Mysterium Park: Meh, wouldn’t bother playing again.
• Poetry for Neanderthals: Absolutely tears-rolling-down-face can’t-breathe hilarious. Funniest utterances “tastes like brown” and “wet cheese”. Will buy this one for the niblings.
#BoardGames

Lower Bounds on Density for Topologically Nontrivial Minimal Cones up to Dimension Six
Jacob Bernstein, Lu Wang
https://arxiv.org/abs/2404.04382 https://…

Lower Bounds on Density for Topologically Nontrivial Minimal Cones up to Dimension Six
We prove lower bounds on the density of regular minimal cones of dimension less than seven provided the complements of the cones are topologically nontrivial.

Particle Acceleration and Nonthermal Emission at the Intrabinary Shock of Spider Pulsars. I: Non-Radiative Simulations
Jorge Cort\'es, Lorenzo Sironi
https://arxiv.org/abs/2404.03700

Particle Acceleration and Nonthermal Emission at the Intrabinary Shock of Spider Pulsars. I: Non-Radiative Simulations
Spider pulsars are compact binary systems composed of a millisecond pulsar and a low-mass companion. Their X-ray emission - modulated on the orbital period - is interpreted as synchrotron radiation from high-energy electrons accelerated at the intrabinary shock. We perform global two-dimensional particle-in-cell simulations of the intrabinary shock, assuming that the shock wraps around the companion star. When the pulsar spin axis is nearly aligned with the orbital angular momentum, we find tha…

#science #Neanderthals #paleontology
Wooden tools used by Neanderthals 300kya.

Probing Plexciton Emission from 2D Materials on Gold Nanotrenches
Junze Zhou, P. A. D. Gon\c{c}alves, Fabrizio Riminucci, Scott Dhuey, Edward Barnard, Adam Schwartzberg, F. Javier Garc\'ia de Abajo, Alexander Weber-Bargioni
https://arxiv.org/abs/2404.05161

Probing Plexciton Emission from 2D Materials on Gold Nanotrenches
Probing strongly coupled quasiparticle excitations at their intrinsic length scales offers unique insights into their properties and facilitates the design of devices with novel functionalities. In this work, we investigate the formation and emission characteristics of plexcitons, arising from the interaction between surface plasmons in narrow gold nanotrenches and excitons in monolayer WSe2. We study this strong plasmon-exciton coupling in both the far-field and the near-field. Specifically, w…

#NoMatter

Nonthermal Heavy Dark Matter from a First-Order Phase Transition
Gian F. Giudice, Hyun Min Lee, Alex Pomarol, Bibhushan Shakya
https://arxiv.org/abs/2403.03252

Nonthermal Heavy Dark Matter from a First-Order Phase Transition
We study nonthermal production of heavy dark matter from the dynamics of the background scalar field during a first-order phase transition, predominantly from bubble collisions. In scenarios where bubble walls achieve runaway behavior and get boosted to very high energies, we find that it is possible to produce dark matter with mass several orders of magnitude above the symmetry breaking scale or the highest temperature ever reached by the thermal plasma. We also demonstrate that the existing f…

Harper's beyond square-root conjecture
Victor Y. Wang, Max Wenqiang Xu
https://arxiv.org/abs/2405.04094 https://arxiv.org/pdf/240…

Harper's beyond square-root conjecture
We explain how the (shifted) Ratios Conjecture for $L(s,χ)$ would extend a randomization argument of Harper from a conductor-limited range to an unlimited range of ``beyond square-root cancellation'' for character twists of the Liouville function. As a corollary, the Liouville function would have nontrivial cancellation in arithmetic progressions of modulus just exceeding the well-known square-root barrier. Morally, the paper passes from random matrices to random multiplicative functions.

Classification of two and three dimensional complete gradient Yamabe solitons
Shun Maeta
https://arxiv.org/abs/2405.03921 https://arx…

Classification of two and three dimensional complete gradient Yamabe solitons
In this paper, we completely classify nontrivial nonflat three dimensional complete shrinking and steady gradient Yamabe solitons without any assumptions. We also give examples of complete expanding gradient Yamabe solitons. Furthermore, we give a proof of the classification of nontrivial two dimensional complete gradient Yamabe solitons without any assumptions.

Nonthermal Heavy Dark Matter from a First-Order Phase Transition
Gian F. Giudice, Hyun Min Lee, Alex Pomarol, Bibhushan Shakya
https://arxiv.org/abs/2403.03252

Nonthermal Heavy Dark Matter from a First-Order Phase Transition
We study nonthermal production of heavy dark matter from the dynamics of the background scalar field during a first-order phase transition, predominantly from bubble collisions. In scenarios where bubble walls achieve runaway behavior and get boosted to very high energies, we find that it is possible to produce dark matter with mass several orders of magnitude above the symmetry breaking scale or the highest temperature ever reached by the thermal plasma. We also demonstrate that the existing f…