klaurent – Page 13 – Kavli Institute Pre-Print Publications

Active-Learning Inspired $textitAb Initio$ Theory-Experiment Loop Approach for Management of Material Defects: Application to Superconducting Qubits

Posted by klaurent October 2, 2025Cornell

Kavli Affiliate: David A. Muller | First 5 Authors: Sarvesh Chaudhari, Sarvesh Chaudhari, , , | Summary: Surface oxides are associated with two-level systems (TLSs) that degrade the performance of niobium-based superconducting quantum computing devices. To address this, we introduce a predictive framework for selecting metal capping layers that inhibit niobium oxide formation. Using DFT-calculated […]

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Active-Learning Inspired Ab Initio Theory-Experiment Loop Approach for Management of Material Defects: Application to Superconducting Qubits

Posted by klaurent October 2, 2025October 13, 2025Cornell

Kavli Affiliate: David Muller | First 5 Authors: Sarvesh Chaudhari, Sarvesh Chaudhari, , , | Summary: Surface oxides are associated with two-level systems (TLSs) that degrade the performance of niobium-based superconducting quantum computing devices. To address this, we introduce a predictive framework for selecting metal capping layers that inhibit niobium oxide formation. Using DFT-calculated oxygen […]

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TES Bolometer Design and Testing for the Tomographic Ionized-carbon Mapping Experiment Millimeter Array

Posted by klaurent October 2, 2025October 13, 2025Caltech

Kavli Affiliate: James J. Bock | First 5 Authors: Victoria L. Butler, Victoria L. Butler, , , | Summary: Transition Edge Sensor (TES) bolometers are a well-established technology with a strong track record in experimental cosmology, making them ideal for current and future radio astronomy instruments. The Tomographic Ionized-carbon Mapping Experiment (TIME), in collaboration with […]

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The Entangled Feedback Impacts of Supernovae in Coarse- versus High-Resolution Galaxy Simulations

Posted by klaurent October 2, 2025October 13, 2025MIT

Kavli Affiliate: Mark Vogelsberger | First 5 Authors: Eric Zhang, Eric Zhang, , , | Summary: It is often understood that supernova (SN) feedback in galaxies is responsible for regulating star formation and generating gaseous outflows. However, a detailed look at their effect on the local interstellar medium (ISM) on small mass scales in simulations […]

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No Observational Evidence for Dark Matter Nor a Large Metallicity Spread in the Extreme Milky Way Satellite Ursa Major III / UNIONS 1

Posted by klaurent October 2, 2025October 13, 2025Chicago

Kavli Affiliate: Alexander P. Ji | First 5 Authors: William Cerny, William Cerny, , , | Summary: The extremely-low-luminosity, compact Milky Way satellite Ursa Major III / UNIONS 1 (UMaIII/U1; $L_V = 11 L_odot$; $a_1/2 = 3$ pc) was found to have a substantial velocity dispersion at the time of its discovery ($sigma_v = 3.7^+1.4_-1.0 […]

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Relativistic Jets and Winds in Radio-Identified Supermassive Black Hole Binary Candidates

Posted by klaurent October 2, 2025October 13, 2025Stanford

Kavli Affiliate: Roger D. Blandford | First 5 Authors: Andrew G. Sullivan, Andrew G. Sullivan, , , | Summary: Supermassive black hole binary systems (SMBHBs) are thought to emit the recently discovered nHz gravitational wave background; however, not a single individual nHz source has been confirmed to date. Long-term radio-monitoring at the Owens Valley Radio […]

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Measurement of Dark Matter Substructure from the Kinematics of the GD-1 Stellar Stream

Posted by klaurent October 2, 2025October 13, 2025Tokyo

Kavli Affiliate: David N. Spergel | First 5 Authors: Jacob Nibauer, Jacob Nibauer, , , | Summary: Stellar streams are sensitive tracers of low-mass dark matter subhalos and provide a means to test the Cold Dark Matter (CDM) paradigm on small scales. In this work, we connect the intrinsic velocity dispersion of the GD-1 stream […]

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Resonant production of sterile neutrino dark matter with a refined numerical scheme

Posted by klaurent October 2, 2025Tokyo

Kavli Affiliate: Masahiro Kawasaki | First 5 Authors: Kentaro Kasai, Kentaro Kasai, , , | Summary: The existence of a large primordial neutrino asymmetry is an intriguing possibility, both observationally and theoretically. Such an asymmetry can lead to the resonant production of $mathrmkeV$-scale sterile neutrinos, which are a fascinating candidate for dark matter. In this […]

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Resonant production of sterile neutrino dark matter with a refined numerical scheme

Posted by klaurent October 2, 2025October 13, 2025Tokyo

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Local linearization for estimating the diffusion parameter of nonlinear stochastic wave equations with spatially correlated noise

Posted by klaurent October 2, 2025October 13, 2025Peking

Kavli Affiliate: Ran Wang | First 5 Authors: Guoping Liu, Guoping Liu, , , | Summary: We study the bi-parameter local linearization of the one-dimensional nonlinear stochastic wave equation driven by a Gaussian noise, which is white in time and has a spatially homogeneous covariance structure of Riesz-kernel type. We establish that the second-order increments […]

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