August 5, 2025 – Kavli Institute Pre-Print Publications

Modeling hidden cognitive states reveals acute and chronic effects of fentanyl on decision-making

Posted by dbos August 5, 2025August 18, 2025Hopkins

Kavli Affiliate: Patricia Janak | Authors: Zhenlong Zhang, Patricia H. Janak and Eric Garr | Summary: The cognitive mechanisms underlying behavior are often dynamic, shifting gradually or abruptly over time scales spanning years, to weeks, to minutes. Whether drug-induced changes in learning and decision-making follow similarly dynamic patterns remains unclear. To address this, we apply […]

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Sequence termination cues drive habits via dopamine-mediated credit assignment

Posted by dbos August 5, 2025August 18, 2025Hopkins

Kavli Affiliate: Patricia Janak | Authors: Robin Magnard, Yifeng Cheng, Joanna Zhou, Haley Province, Nathalie Thiriet, Patricia H Janak and Youna Vandaele | Summary: Background Mesolimbic dopamine (DA) neurons are central to cue guided reward seeking and action sequence learning. Yet, the mechanisms by which cue-induced DA neural activity drives goal-directed or habitual sequence execution […]

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BubbleOKAN: A Physics-Informed Interpretable Neural Operator for High-Frequency Bubble Dynamics

Posted by klaurent August 5, 2025UCAS

Kavli Affiliate: Cheng Peng | First 5 Authors: Yunhao Zhang, Yunhao Zhang, , , | Summary: In this work, we employ physics-informed neural operators to map pressure profiles from an input function space to the corresponding bubble radius responses. Our approach employs a two-step DeepONet architecture. To address the intrinsic spectral bias of deep learning […]

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Nonlocal massive Thirring model and its solutions

Posted by klaurent August 5, 2025August 18, 2025Peking

Kavli Affiliate: Jing Wang | First 5 Authors: Cong-han Wang, Cong-han Wang, , , | Summary: A nonlocal version of the massive Thirring model (MTM) and its solutions are presented. We start from a 4-component system that can be reduced to the classical MTM and nonlocal MTM. Bilinear form of the 4-component system and general […]

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X-ray Polarimetry of Accreting White Dwarfs: A Case Study of EX Hydrae

Posted by klaurent August 5, 2025MIT

Kavli Affiliate: Herman Marshall | Summary:We present the first first X-ray polarization measurements of a white dwarf, the intermediate polar EX Hya. We measured significant polarization only in the 2 — 3 keV energy band with a polarization degree of 8 percent at a $3σ$ significance. No significant polarization was detected above 3 keV, which […]

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X-ray Polarimetry of Accreting White Dwarfs: A Case Study of EX Hydrae

Posted by klaurent August 5, 2025MIT

Kavli Affiliate: David Huenemoerder | Summary:We present the first first X-ray polarization measurements of a white dwarf, the intermediate polar EX Hya. We measured significant polarization only in the 2 — 3 keV energy band with a polarization degree of 8 percent at a $3σ$ significance. No significant polarization was detected above 3 keV, which […]

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X-ray Polarimetry of Accreting White Dwarfs: A Case Study of EX Hydrae

Posted by klaurent August 5, 2025MIT

Kavli Affiliate: David P. Huenemoerder | First 5 Authors: Sean J. Gunderson, Sean J. Gunderson, , , | Summary: We present the first first X-ray polarization measurements of a white dwarf, the intermediate polar EX Hya. We measured significant polarization only in the 2 — 3 keV energy band with a polarization degree of 8 […]

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X-ray Polarimetry of Accreting White Dwarfs: A Case Study of EX Hydrae

Posted by klaurent August 5, 2025MIT

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Squeezed Quasinormal Modes from Nonlinear Gravitational Effects

Posted by klaurent August 5, 2025MIT

Kavli Affiliate: Frank Wilczek | Summary:We estimate the degree of squeezing possible in gravitational waves due to nonlinear gravitational effects in the weakly perturbative regime. Using the predicted amplitude ratios for higher harmonic generation in the ringdown phase of a black hole merger event, we estimate the relevant degree of squeezing produced by a Schwarzschild […]

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Squeezed Quasinormal Modes from Nonlinear Gravitational Effects

Posted by klaurent August 5, 2025MIT

Kavli Affiliate: Frank Wilczek | Summary:We demonstrate that long-lived black hole quasi-normal modes become quantum mechanically squeezed due to nonlinear gravitational effects. We estimate the degree of squeezing for the fundamental mode of a Schwarzschild black hole quantitatively. | Search Query: arXiv Query: search_query=au:”Wilczek Frank”&id_list=&start=0&max_results=10Read More

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