VENUS: Strong-lensing model of MACS J1931.8-2635 — revealing the farthest multiply imaged supernova

Kavli Affiliate: Kohei Inayoshi | Summary:We present a parametric strong-lensing model for the galaxy cluster MACS J1931.8-2635 ($z_l = 0.35$), accompanying the detection of the spectroscopically confirmed SN Eos at $z = 5.13$ (Coulter et al. 2026). We identify 10 new multiple-image systems in recent VENUS JWST/NIRCam imaging, so that the model is constrained with […]


Continue.. VENUS: Strong-lensing model of MACS J1931.8-2635 — revealing the farthest multiply imaged supernova

Zebra finch females flexibly communicate with each other and with AI-driven acoustic interaction models

Kavli Affiliate: Sarah Woolley | Authors: Logan S James, Benjamin Hoffman, Jen-Yu Liu, Marius Miron, Milad Alizadeh, Emmanuel Fernandez, Matthieu Geist, Diane Kim, Aza Raskin, Jon T Sakata, Emmanuel Chemla, Olivier Pietquin and Sarah C Woolley | Summary: Vocal interactions are widespread across animals and important for many social behaviors (1–4). For example, during human […]


Continue.. Zebra finch females flexibly communicate with each other and with AI-driven acoustic interaction models

Cortical maps diverge, representations converge along cortical hierarchy

Kavli Affiliate: Martin Lindquist | Authors: Bogdan Petre, Martin A Lindquist and Tor Wager | Summary: Brain maps (e.g. retinotopy, somatotopy) vary across individuals. This is thought to reflect underlying computational differences. However, artificial neural networks (ANNs) show that similar performance and internal representations can coexist with diverse circuit layouts. Consequently, we tested the presumption […]


Continue.. Cortical maps diverge, representations converge along cortical hierarchy

Magnonic spontaneous oscillation induced by parametric pumping

Kavli Affiliate: Clarence Chang | Summary:Spontaneous dynamic systems have attracted significant attention for their rich underlying physics such as phase-locking and synchronization. In this work, we report a new mechanism of generating magnetic spontaneous oscillation via parametric pumping. By applying a pump tone to excite propagating spin waves in a yttrium iron garnet delay line, […]


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Flux Pumped Kerr-Free Parametric Amplifier

Kavli Affiliate: Irfan Siddiqi | Summary:We propose a flux-pumped superconducting parametric amplifier based on symmetrically threaded superconducting quantum interference devices (SQUIDs) that achieves a Kerr-free operating point under suitable drive conditions. Eliminating the Kerr nonlinearity is advantageous for quantum-limited amplification, as it mitigates unwanted distortions in squeezing and prevents degradation of both gain and quantum […]


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Programmable RNA detection generates DNA barcodes for multiplexed phage-host interaction screening

Kavli Affiliate: Seth Shipman | Authors: Jihoon Han and Seth Shipman | Summary: Here, we introduce Detectrons, modular biosensors that couples programmable toehold switches with retron-mediated reverse transcription to transduce RNA inputs into unique DNA barcodes. The ability to convert dynamic RNA signals into durable DNA records within living cells unlocks powerful new modes of […]


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The Signature of Strong High-Redshift Radio Backgrounds on the Cosmic Dawn 21-cm Bispectrum

Kavli Affiliate: George Efstathiou | Summary:Measurements from the Absolute Radiometer for Cosmology, Astrophysics, and Diffuse Emission 2 (ARCADE-2) reveal a strong radio background in the GHz frequency range. Since the cosmological 21-cm signal is measured relative to the background radiation temperature, the presence of a radio excess can significantly alter its characteristics. Previous studies have […]


Continue.. The Signature of Strong High-Redshift Radio Backgrounds on the Cosmic Dawn 21-cm Bispectrum

The Signature of Strong High-Redshift Radio Backgrounds on the Cosmic Dawn 21-cm Bispectrum

Kavli Affiliate: George Efstathiou | Summary:Measurements from the Absolute Radiometer for Cosmology, Astrophysics, and Diffuse Emission 2 (ARCADE-2) reveal a strong radio background in the GHz frequency range. Since the cosmological 21-cm signal is measured relative to the background radiation temperature, the presence of a radio excess can significantly alter its characteristics. Previous studies have […]


Continue.. The Signature of Strong High-Redshift Radio Backgrounds on the Cosmic Dawn 21-cm Bispectrum

Sequential BP-based Decoding of QLDPC Codes

Kavli Affiliate: Salman Habib | Summary:Quantum low-density parity-check (QLDPC) codes are a leading approach to quantum error correction, yet conventional belief propagation (BP) decoders often perform poorly, primarily due to non-convergence exacerbated by stabilizer constraints, which induce short cycles and degeneracy. We propose two scheduling variants, sequential check node scheduling (SCNS) and sequential variable node […]


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Revising the Milky Way Cepheid Calibration: Quantifying and Correcting for Previously Undetected Distance Modulus Errors in the Gaia-based Multi-Wavelength Period-Luminosity Relations

Kavli Affiliate: Wendy Freedman | Summary:We examine the multi-wavelength period-luminosity-color relations for Cepheid variables in the Large and Small magellanic Clouds and the Milky Way. From first-principles stellar physics, the luminosity of a Cepheid is determined by its radius and surface temperature, yielding a fundamental PLC relation whose observational proxies are pulsation period and intrinsic […]


Continue.. Revising the Milky Way Cepheid Calibration: Quantifying and Correcting for Previously Undetected Distance Modulus Errors in the Gaia-based Multi-Wavelength Period-Luminosity Relations