Tootfinder

Multipurpose in situ cell design for 3D X-ray imaging of electrochemical processes
Riley J. Hultquist, David Simonne, Sayantan Mondal, Ericmoore Jossou
https://arxiv.org/abs/2506.04543

Multipurpose in situ cell design for 3D X-ray imaging of electrochemical processes
We present the design of a modular multipurpose cell for monitoring the degradation of materials in extreme environments. This cell decouples the reference electrode from the working and counter electrodes, permitting precise electrochemical control and measurement reliability. The design is compatible with 4th generation synchrotron light sources, and its emphasis on modularity facilitates adaptation to different beamlines, where there may be variations in sample stage requirements and X-ray i…

This https://arxiv.org/abs/2411.13669 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_qu…

Quantum Algorithm for Vibronic Dynamics: Case Study on Singlet Fission Solar Cell Design
Vibronic interactions between nuclear motion and electronic states are critical for the accurate modeling of photochemistry. However, accurate simulations of fully quantum non-adiabatic dynamics are often prohibitively expensive for classical methods beyond small systems. In this work, we present a quantum algorithm based on product formulas for simulating time evolution under a general vibronic Hamiltonian in real space, capable of handling an arbitrary number of electronic states and vibratio…

It's time for the #EV industry to hold itself to a higher standard when it comes to roaming. You can't have your cake and eat it. Make the cake bigger!
https://www.linkedin.com/…

I fully agree with Christian Weinberger's call here: Isn't it time we stop… | Jaap Burger
I fully agree with Christian Weinberger's call here: Isn't it time we stop pretending roaming works and start holding the ecosystem to a higher standard? As a fossil in this industry, I remember how EV roaming took off 15 years ago – it was a no-brainer from a user perspective and a logical step to ensure that the EV charging market could grow, benefiting everyone in the sector. As an early electric car driver eager to travel abroad, I spent a lot of time getting the right passes for local n…

Prospects for the production and detection of Breit-Wheeler tunneling positrons in Experiment 320 at the FACET-II accelerator
Oleksandr Borysov, Alon Levi, Sebastian Meuren, Nathaly Nofech-Mozes, Ivan Rajkovic, David A. Reis, Arka Santra, Doug W. Storey, Noam Tal Hod, Roman Urmanov
https://arxiv.org/abs/2506.04992

Prospects for the production and detection of Breit-Wheeler tunneling positrons in Experiment 320 at the FACET-II accelerator
The SLAC Experiment 320 collides 10 TW-class laser pulses with the high-quality, 10 GeV electron beam from the FACET-II RF LINAC. This setup is expected to produce a sizable number of $e^+e^-$ pairs via nonlinear Breit-Wheeler mechanism in the strong-field tunneling regime, with an estimated yield of ~0.01-0.1 pairs per collision. This small signal rate typically comes along with large backgrounds originating, e.g., from dumping the high-charge primary beam, secondaries induced by the beam halo…

I just received a shocking phone call that made my heart sink.
Just days after Susan Collins voted to confirm RFK Jr. and Tulsi Gabbard,
the MAGA Republican establishment rushed Susan Collins $842K
to rescue her chances for re-election.
𝐈'𝐥𝐥 𝐫𝐞𝐩𝐞𝐚𝐭 𝐭𝐡𝐚𝐭:
𝐑𝐞𝐩𝐮𝐛𝐥𝐢𝐜𝐚𝐧𝐬 𝐤𝐧𝐨𝐰 𝐭𝐡𝐚𝐭 𝐒𝐮𝐬𝐚𝐧 𝐂𝐨𝐥𝐥𝐢𝐧𝐬 𝐢𝐬 𝐭𝐡𝐞 𝐦𝐨𝐬𝐭 𝐯𝐮𝐥𝐧𝐞𝐫𝐚𝐛𝐥𝐞 𝐒𝐞𝐧𝐚𝐭𝐨𝐫
- 𝐞𝐬𝐩𝐞𝐜𝐢𝐚𝐥𝐥𝐲 𝐚𝐟𝐭𝐞𝐫 𝐬𝐡𝐞 𝐜𝐨𝐧𝐟𝐢𝐫𝐦𝐞𝐝 𝐓𝐫𝐮𝐦𝐩'𝐬 𝐜𝐚𝐛𝐢𝐧𝐞𝐭
- 𝐬𝐨 𝐭𝐡𝐞𝐲 𝐫𝐮𝐬𝐡𝐞𝐝 𝐡𝐞𝐫 𝐚 𝐰𝐢𝐧𝐝𝐟𝐚𝐥𝐥 𝐨𝐟 𝐜𝐚𝐬𝐡 𝐭𝐨 𝐝𝐞𝐟𝐞𝐚𝐭 𝐦𝐞.

Chip in now to elect Jordan Wood >>
Help Jordan defeat Susan Collins

Empirical scaling laws for self-focused laser pulses in nitrogen plasmas
Lorenzo Martelli, Igor Andriyash, Jonathan Wheeler, Henri Kraft, Xuan Quyen Dinh, C\'edric Thaury
https://arxiv.org/abs/2506.04827

Empirical scaling laws for self-focused laser pulses in nitrogen plasmas
We investigate the interaction between a superintense laser pulse and a nitrogen plasma with densities exceeding $10^{19}\,$cm$^{-3}$, using particle-in-cell simulations. Such configurations have recently demonstrated the capability to produce highly charged electron beams (i.e., $>10\,$nC) with $1\,$J-class lasers, a significant step toward high-average-current laser-plasma accelerators. Our study focuses on analyzing the impact of laser self-focusing on laser dynamics, leading to scaling laws…

We in Game Workers Unite Ireland stand in solidarity with Animation Workers of Ireland, and the international trade union coalition happening to organise against the threat of AI in the animation industry, and we support their call to acton.
Join them Thursday 12 June at 14:00 at the Pâquier in Annecy!!
#Animation

Is Reasoning All You Need? Probing Bias in the Age of Reasoning Language Models
Riccardo Cantini, Nicola Gabriele, Alessio Orsino, Domenico Talia
https://arxiv.org/abs/2507.02799 …

Is Reasoning All You Need? Probing Bias in the Age of Reasoning Language Models
Reasoning Language Models (RLMs) have gained traction for their ability to perform complex, multi-step reasoning tasks through mechanisms such as Chain-of-Thought (CoT) prompting or fine-tuned reasoning traces. While these capabilities promise improved reliability, their impact on robustness to social biases remains unclear. In this work, we leverage the CLEAR-Bias benchmark, originally designed for Large Language Models (LLMs), to investigate the adversarial robustness of RLMs to bias elicitat…

Proportional Response Dynamics in Gross Substitutes Markets
Yun Kuen Cheung, Richard Cole, Yixin Tao
https://arxiv.org/abs/2506.02852 https://

Proportional Response Dynamics in Gross Substitutes Markets
Proportional response is a well-established distributed algorithm which has been shown to converge to competitive equilibria in both Fisher and Arrow-Debreu markets, for various sub-families of homogeneous utilities, including linear and constant elasticity of substitution utilities. We propose a natural generalization of proportional response for gross substitutes utilities, and prove that it converges to competitive equilibria in Fisher markets. This is the first convergence result of a propo…

Phonon-Induced Current Noise in Single-Walled Carbon Nanotubes across the Ballistic-Diffusive Crossover
Aina Sumiyoshi, Takahiro Yamamoto
https://arxiv.org/abs/2506.02569

Phonon-Induced Current Noise in Single-Walled Carbon Nanotubes across the Ballistic-Diffusive Crossover
We theoretically elucidate the system length ($L$) dependence of phonon-induced current noise in carbon nanotubes at room temperature over a broad range, encompassing the quantum ballistic and classical diffusive regimes. The power spectral density for the current noise is maximally enhanced when $L$ is comparable to the mean free path $L_0$ of an electron. In the ballistic limit of $L/L_0\ll 1$, the power spectral density increases in proportion to $L$, whereas in the diffusive limit of $L/L_0…