June 25, 2025 – Kavli Institute Pre-Print Publications

Planck Constraints on Axion-Like Particles through Isotropic Cosmic Birefringence

Posted by klaurent June 25, 2025Tokyo

Kavli Affiliate: Toshiya Namikawa | First 5 Authors: Toshiya Namikawa, Toshiya Namikawa, , , | Summary: We present constraints on isotropic cosmic birefringence induced by axion-like particles (ALPs), derived from the analysis of cosmic microwave background (CMB) polarization measurements obtained with the high-frequency channels of Planck. Recent measurements report a hint of isotropic cosmic birefringence, […]

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Holography with Null Boundaries

Posted by dbos June 25, 2025July 14, 2025Chicago

Kavli Affiliate: Savdeep Sethi | First 5 Authors: Christian Ferko, Savdeep Sethi, , , | Summary: One of the key issues in holography is going beyond $mathrm{AdS}$ and defining quantum gravity in spacetimes with a null boundary. Recent examples of this type involve linear dilaton asymptotics and are related to the $T overline{T}$ deformation. We […]

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Holography with Null Boundaries

Posted by dbos June 25, 2025July 14, 2025Chicago

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Spin-Photon Correlations from a Purcell-enhanced Diamond Nitrogen-Vacancy Center Coupled to an Open Microcavity

Posted by klaurent June 25, 2025Delft

Kavli Affiliate: Ronald Hanson | First 5 Authors: [#item_custom_name[1]], [#item_custom_name[2]], [#item_custom_name[3]], [#item_custom_name[4]], [#item_custom_name[5]] | Summary: An efficient interface between a spin qubit and single photons is a key enabling system for quantum science and technology. We report on a coherently controlled diamond nitrogen-vacancy center electron spin qubit that is optically interfaced with an open microcavity. […]

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Laser-cut Patterned, Micrometer-thin Diamond Membranes with Coherent Color Centers for Open Microcavities

Posted by klaurent June 25, 2025Delft

Kavli Affiliate: Ronald Hanson | First 5 Authors: [#item_custom_name[1]], [#item_custom_name[2]], [#item_custom_name[3]], [#item_custom_name[4]], [#item_custom_name[5]] | Summary: Micrometer-scale thin diamond devices are key components for various quantum sensing and networking experiments, including the integration of color centers into optical microcavities. In this work, we introduce a laser-cutting method for patterning microdevices from millimeter-sized diamond membranes. The method […]

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SPT-3G D1: CMB temperature and polarization power spectra and cosmology from 2019 and 2020 observations of the SPT-3G Main field

Posted by klaurent June 25, 2025Stanford

Kavli Affiliate: Chao-Lin Kuo | 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 present measurements of the temperature and E-mode polarization angular power spectra of the cosmic microwave background (CMB) from observations of 4% of the sky with SPT-3G, the current camera on the South Pole Telescope (SPT). The maps used in […]

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The Singapore Consensus on Global AI Safety Research Priorities

Posted by klaurent June 25, 2025MIT

Kavli Affiliate: Max Tegmark | First 5 Authors: Yoshua Bengio, Yoshua Bengio, , , | Summary: Rapidly improving AI capabilities and autonomy hold significant promise of transformation, but are also driving vigorous debate on how to ensure that AI is safe, i.e., trustworthy, reliable, and secure. Building a trusted ecosystem is therefore essential — it […]

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An iterative CMB lensing estimator minimizing instrumental noise bias

Posted by klaurent June 25, 2025Cambridge

Kavli Affiliate: Anthony Challinor | First 5 Authors: Louis Legrand, Louis Legrand, , , | Summary: Noise maps from CMB experiments are generally statistically anisotropic, due to scanning strategies, atmospheric conditions, or instrumental effects. Any mis-modeling of this complex noise can bias the reconstruction of the lensing potential and the measurement of the lensing power […]

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Interpretable abstractions of artificial neural networks predict behavior and neural activity during human information gathering

Posted by dbos June 25, 2025July 14, 2025UCSD / Salk

Kavli Affiliate: Marcelo Mattar | Authors: Simone D’Ambrogio, Jan Grohn, Nima Khalighinejad, Marcelo Mattar, Laurence T Hunt and Matthew F Rushworth | Summary: It has been suggested that humans and other animals are driven by a fundamental desire to acquire information about opportunities available in their environments. Not only might such a desire explain pathological […]

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SLAy-ing oversplitting errors in high-density electrophysiology spike sorting

Posted by dbos June 25, 2025July 14, 2025Hopkins

Kavli Affiliate: Adam S. Charles | Authors: Sai Koukuntla, Tate DeWeese, Alexandra Cheng, Robyn Mildren, Aamna Lawrence, Austin R Graves, Jennifer Colonell, Timothy D Harris and Adam S Charles | Summary: The growing channel count of silicon probes has substantially increased the number of neurons recorded in electrophysiology (ephys) experiments, rendering traditional manual spike sorting […]

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