2025 – Page 22 – Kavli Institute Pre-Print Publications

Anomalous impurity-induced charge modulations in black phosphorus

Posted by klaurent December 4, 2025February 17, 2026Stanford

Kavli Affiliate: Hsiao-Mei (Sherry) Cho| First 5 Authors: [#item_custom_name[1, [#item_custom_name[2, [#item_custom_name[3, [#item_custom_name[4, [#item_custom_name[5| Summary:We observe anomalous charge modulations induced by ionized indium impurities on the surface of the semiconductor black phosphorus by scanning tunneling microscopy (STM). When the im- purities are switched into a negatively charged state by the STM tip, periodic charge modulations emerge […]

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Characterizing the Low-Mass Pre-Main-Sequence Population in the Low-Metallicity Star-Forming Region Dolidze 25 Using VLT-MUSE

Posted by klaurent December 4, 2025Peking

Kavli Affiliate: Gregory Herczeg | Summary:The metallicity of the star-forming environment is a fundamental parameter shaping the evolution of protoplanetary disks and the formation of planetary systems, yet its influence remains poorly constrained. We present a spectroscopic study of low-mass pre-main sequence (PMS) stars ($M < 1 , M_odot$) in the exceptionally metal-poor cluster Dolidze~25 […]

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Uncovering Students’ Inquiry Patterns in GenAI-Supported Clinical Practice: An Integration of Epistemic Network Analysis and Sequential Pattern Mining

Posted by klaurent December 4, 2025Berkeley

Kavli Affiliate: Joel Moore | Summary:Assessment of medication history-taking has traditionally relied on human observation, limiting scalability and detailed performance data. While Generative AI (GenAI) platforms enable extensive data collection and learning analytics provide powerful methods for analyzing educational traces, these approaches remain largely underexplored in pharmacy clinical training. This study addresses this gap by […]

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Mini-supernovae from white dwarf-neutron star mergers: Viewing-angle-dependent spectra and lightcurves

Posted by klaurent December 4, 2025Peking

Kavli Affiliate: Lijing Shao | Summary:Unstable mass transfer may occur during white dwarf-neutron star (WD-NS) mergers, in which the WD can be tidally disrupted and form an accretion disk around the NS. Such an accretion disk can produce unbound wind ejecta, with synthesized $^56mathrmNi$ mixed in. Numerical simulations reveal that this unbound ejecta should be […]

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Confronting cosmic shear astrophysical uncertainties: DES Year 3 revisited

Posted by klaurent December 3, 2025Cambridge

Kavli Affiliate: George Efstathiou | Summary:Cosmology from weak gravitational lensing has been limited by astrophysical uncertainties in baryonic feedback and intrinsic alignments. By calibrating these effects using external data, we recover non-linear information, achieving a 2% constraint on the clustering amplitude, $S_8$, resulting in a factor of two improvement on the $Λ$CDM constraints relative to […]

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Neuronal calcium spikes enable vector inversion in the Drosophila brain

Posted by dbos December 3, 2025January 5, 2026Rockefeller

Kavli Affiliate: Keri Martinowich | Authors: Jason J Rehg, Daniel E Olivares, Ye Li, Keri Martinowich, Greg V Carr and Jorge Miranda-Barrientos | Summary: A typical neuron signals to downstream cells when it is depolarized and firing sodium spikes. Some neurons, however, also fire calcium spikes when hyperpolarized. The function of such bidirectional signaling remains […]

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Popcorn EMRIs: Transient Gravitational Wave Signals and Their Analysis in Schwartz Space

Posted by klaurent December 3, 2025Peking

Kavli Affiliate: Pau Amaro Seoane | Summary:We investigate extreme-mass ratio inspirals (EMRIs) with orbital periods exceeding the observational timescale of mHz gravitational wave observatories. In their early, highly eccentric phases, these systems generate transient gravitational wave bursts during pericentre passages, separated by long quiescent intervals; we designate these signals “popcorn EMRIs.” We utilize a steady-state […]

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Galactic bars are already mature at Cosmic Noon: bar strength and flatness at z ~ 1.5

Posted by klaurent December 3, 2025Tokyo

Kavli Affiliate: John Silverman | Summary:In this work, we explore the nature of $z>1$ galactic bars. Once thought to be highly transient, our results demonstrate otherwise. Our sample consists of nine massive ($>10^10.5,rm M_odot$) star-forming barred-spiral galaxies at $z_rm spec sim 1.5$. Using rest-frame near-IR (F444W) JWST/NIRCam imaging, we apply ellipse fitting along with 1D […]

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The DREAMS Project: Disentangling the Impact of Halo-to-Halo Variance and Baryonic Feedback on Milky Way Dark Matter Speed Distributions

Posted by klaurent December 3, 2025MIT

Kavli Affiliate: Lina Necib | Summary:Direct detection experiments require information about the local dark matter speed distribution to produce constraints on dark matter candidates, or infer their properties in the event of a discovery. In this paper, we analyze how the uncertainty in the dark matter speed distribution near the Sun is affected by baryonic […]

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RELIC: Interactive Video World Model with Long-Horizon Memory

Posted by klaurent December 3, 2025UCSB

Kavli Affiliate: Matthew Fisher | Summary:A truly interactive world model requires three key ingredients: real-time long-horizon streaming, consistent spatial memory, and precise user control. However, most existing approaches address only one of these aspects in isolation, as achieving all three simultaneously is highly challenging-for example, long-term memory mechanisms often degrade real-time performance. In this work, […]

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