Tootfinder

Initial simulation of Samtec ARC6 connector launch. No ground plane cutout so the diffpair impedance drops to about 65Ω at the connector so far.
That will have to change, of course, but I wanted a baseline for comparison.

An efficient forgetting-aware fine-tuning framework for pretrained universal machine-learning interatomic potentials
Jisu Kim, Jiho Lee, Sangmin Oh, Yutack Park, Seungwoo Hwang, Seungwu Han, Sungwoo Kang, Youngho Kang
https://arxiv.org/abs/2506.15223

An efficient forgetting-aware fine-tuning framework for pretrained universal machine-learning interatomic potentials
Pretrained universal machine-learning interatomic potentials (MLIPs) have revolutionized computational materials science by enabling rapid atomistic simulations as efficient alternatives to ab initio methods. Fine-tuning pretrained MLIPs offers a practical approach to improving accuracy for materials and properties where predictive performance is insufficient. However, this approach often induces catastrophic forgetting, undermining the generalizability that is a key advantage of pretrained MLI…

Quantum simulation of fermionic non-Abelian lattice gauge theories in $(2 1)$D with built-in gauge protection
Gaia De Paciani, Lukas Homeier, Jad C. Halimeh, Monika Aidelsburger, Fabian Grusdt
https://arxiv.org/abs/2506.14747

Quantum simulation of fermionic non-Abelian lattice gauge theories in $(2+1)$D with built-in gauge protection
Recent advancements in the field of quantum simulation have significantly expanded the potential for applications, particularly in the context of lattice gauge theories (LGTs). Maintaining gauge invariance throughout a simulation remains a central challenge, especially for large-scale non-Abelian LGTs with dynamical matter, which are particularly complex in terms of engineering for experiments. Gauge-symmetry breaking is inevitable in established rishon-based schemes for alkaline-earth-like ato…

Hypothesis Testing for Quantifying LLM-Human Misalignment in Multiple Choice Settings
Harbin Hong, Sebastian Caldas, Liu Leqi
https://arxiv.org/abs/2506.14997

Hypothesis Testing for Quantifying LLM-Human Misalignment in Multiple Choice Settings
As Large Language Models (LLMs) increasingly appear in social science research (e.g., economics and marketing), it becomes crucial to assess how well these models replicate human behavior. In this work, using hypothesis testing, we present a quantitative framework to assess the misalignment between LLM-simulated and actual human behaviors in multiple-choice survey settings. This framework allows us to determine in a principled way whether a specific language model can effectively simulate human…

Extending Spike-Timing Dependent Plasticity to Learning Synaptic Delays
Marissa Dominijanni, Alexander Ororbia, Kenneth W. Regan
https://arxiv.org/abs/2506.14984

Extending Spike-Timing Dependent Plasticity to Learning Synaptic Delays
Synaptic delays play a crucial role in biological neuronal networks, where their modulation has been observed in mammalian learning processes. In the realm of neuromorphic computing, although spiking neural networks (SNNs) aim to emulate biology more closely than traditional artificial neural networks do, synaptic delays are rarely incorporated into their simulation. We introduce a novel learning rule for simultaneously learning synaptic connection strengths and delays, by extending spike-timin…

Why is kicad using 30GB of RAM?
Closed and reopened my board and it's using much less, so something somewhere probably leaked.

Replaced article(s) found for cs.CE. https://arxiv.org/list/cs.CE/new
[1/1]:
A comparative analysis for different finite element types in strain-gradient elasticity simulatio...

High-fidelity entanglement and coherent multi-qubit mapping in an atom array
Aruku Senoo, Alexander Baumg\"artner, Joanna W. Lis, Gaurav M. Vaidya, Zhongda Zeng, Giuliano Giudici, Hannes Pichler, Adam M. Kaufman
https://arxiv.org/abs/2506.13632

High-fidelity entanglement and coherent multi-qubit mapping in an atom array
Neutral atoms in optical tweezer arrays possess broad applicability for quantum information science, in computing, simulation, and metrology. Among atomic species, Ytterbium-171 is unique as it hosts multiple qubits, each of which is impactful for these distinct applications. Consequently, this atom is an ideal candidate to bridge multiple disciplines, which, more broadly, has been an increasingly effective strategy within the field of quantum science. Realizing the full potential of this syner…

First EM simulations on the switch logic board after sorting out some licensing issues with the new Sonnet version.
V19 is a lot faster than v18, it doubles the thread cap from 8 to 16 and also replaces the legacy SSE based matrix solver with an AVX-based version (geee, i wonder where they might have got that from...).
First test is the BGA launch for LC0_PHY0_LANE1_TX, a 5 Gbps QSGMII link but also representative of some of the 25G SERDES.
Return loss is better than -13 dB…