Tootfinder

Study of nuclear magnetic resonance spectra with the multi-model multi-level quantum complex exponential least squares algorithm
Antonio Marquez Romero, Josh J. M. Kirsopp, Giuseppe Buonaiuto, Michal Krompiec
https://arxiv.org/abs/2509.24664

Study of nuclear magnetic resonance spectra with the multi-model multi-level quantum complex exponential least squares algorithm
We present a novel application of the multi-modal, multi-level quantum complex exponential least squares (MM-QCELS) algorithm, a state-of-the-art, early fault-tolerant quantum phase estimation (QPE) technique, to the simulation and analysis of nuclear magnetic resonance (NMR) of spin systems. By leveraging the robustness and precision of MM-QCELS, we demonstrate enhanced phase resolution in quantum simulations of spin dynamics, also in systems with complex coupling topologies. Our approach enab…

Automatic Classification of Magnetic Chirality of Solar Filaments from H-Alpha Observations
Alexis Chalmers, Azim Ahmadzadeh
https://arxiv.org/abs/2509.18214 https://

Dynamic Functional Connectivity Features for Brain State Classification: Insights from the Human Connectome Project
Valeriya Kirova, Dzerassa Kadieva, Daniil Vlasenko, Isak B. Blank, Fedor Ratnikov
https://arxiv.org/abs/2510.05325

Dynamic Functional Connectivity Features for Brain State Classification: Insights from the Human Connectome Project
We analyze functional magnetic resonance imaging (fMRI) data from the Human Connectome Project (HCP) to match brain activities during a range of cognitive tasks. Our findings demonstrate that even basic linear machine learning models can effectively classify brain states and achieve state-of-the-art accuracy, particularly for tasks related to motor functions and language processing. Feature importance ranking allows to identify distinct sets of brain regions whose activation patterns are unique…

Galactic forcing increases origination of marine microplankton
P\'eter Ozsv\'art, Emma Kun, Imre Bartos, Zsolt Gy. M\'arka, Szabolcs M\'arka
https://arxiv.org/abs/2509.04165

Galactic forcing increases origination of marine microplankton
The continuous flux of Galactic cosmic rays that bombard Earth's atmosphere creates ionizing radiation that can damage the DNA of living organisms. While this radiation on Earth is relatively constant in the short term, large and long-scale fluctuations are expected with a period of $\sim 63.5$ million years. As the Solar System moves above or below the Galactic plane during its oscillatory motion about the Galactic center, the Galactic magnetic shielding weakens, allowing more cosmic rays to r…

Broadband Magnetless Isolator using Adiabatic Flux Modulation
M. Demarets, A. M. Vadiraj, C. Caloz, K. De Greve
https://arxiv.org/abs/2509.24551 https://ar…

Broadband Magnetless Isolator using Adiabatic Flux Modulation
Isolators are commonly found in the amplification chain of microwave setups to shield sensitive devices such as superconducting qubits from noise and back-scattered signals. Conventional ferrite-based isolators are bulky, lossy and rely on strong magnetic fields, which pose challenges for their co-integration in large-scale superconducting devices. Here, we present a magnetless isolator that overcomes these limitations with simulated performances on par with the state-of-the-art. Using a disper…