Transmon Qubit Constraints on Dark Matter-Nucleon Scattering

Kavli Affiliate: Noah Kurinsky | First 5 Authors: Anirban Das, Noah Kurinsky, Rebecca K. Leane, , | Summary: We recently pointed out that power measurements of single quasiparticle devices can be used to detect dark matter. These devices have the lowest known energy thresholds, far surpassing standard direct detection experiments, requiring energy deposition above only […]


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NICER Discovery of the Accreting Millisecond X-ray Pulsar SRGA J144459.2-604207

Kavli Affiliate: Deepto Chakrabarty | First 5 Authors: Mason Ng, Paul S. Ray, Andrea Sanna, Tod E. Strohmayer, Alessandro Papitto | Summary: We present the discovery, with the Neutron Star Interior Composition Explorer (NICER), of the 447.9 Hz accreting millisecond X-ray pulsar (AMXP) SRGA J144459.2-604207, which underwent a four-week long outburst starting on 2024 February […]


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NICER Discovery that SRGA J144459.2-604207 is an Accreting Millisecond X-ray Pulsar

Kavli Affiliate: Deepto Chakrabarty | First 5 Authors: Mason Ng, Paul S. Ray, Andrea Sanna, Tod E. Strohmayer, Alessandro Papitto | Summary: We present the discovery, with the Neutron Star Interior Composition Explorer (NICER), that SRGA J144459.2-604207 is a 447.9 Hz accreting millisecond X-ray pulsar (AMXP), which underwent a four-week long outburst starting on 2024 […]


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KAN: Kolmogorov-Arnold Networks

Kavli Affiliate: Max Tegmark | First 5 Authors: Ziming Liu, Yixuan Wang, Sachin Vaidya, Fabian Ruehle, James Halverson | Summary: Inspired by the Kolmogorov-Arnold representation theorem, we propose Kolmogorov-Arnold Networks (KANs) as promising alternatives to Multi-Layer Perceptrons (MLPs). While MLPs have fixed activation functions on nodes ("neurons"), KANs have learnable activation functions on edges ("weights"). […]


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KAN: Kolmogorov-Arnold Networks

Kavli Affiliate: Max Tegmark | First 5 Authors: Ziming Liu, Yixuan Wang, Sachin Vaidya, Fabian Ruehle, James Halverson | Summary: Inspired by the Kolmogorov-Arnold representation theorem, we propose Kolmogorov-Arnold Networks (KANs) as promising alternatives to Multi-Layer Perceptrons (MLPs). While MLPs have fixed activation functions on nodes ("neurons"), KANs have learnable activation functions on edges ("weights"). […]


Continue.. KAN: Kolmogorov-Arnold Networks

KAN: Kolmogorov-Arnold Networks

Kavli Affiliate: Max Tegmark | First 5 Authors: Ziming Liu, Yixuan Wang, Sachin Vaidya, Fabian Ruehle, James Halverson | Summary: Inspired by the Kolmogorov-Arnold representation theorem, we propose Kolmogorov-Arnold Networks (KANs) as promising alternatives to Multi-Layer Perceptrons (MLPs). While MLPs have fixed activation functions on nodes ("neurons"), KANs have learnable activation functions on edges ("weights"). […]


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The Nature of X-Rays from Young Stellar Objects in the Orion Nebula Cluster — A Chandra HETGS Legacy Project

Kavli Affiliate: David A. Principe | First 5 Authors: Norbert S. Schulz, David P. Huenemoerder, David A. Principe, Marc Gagne, Hans Moritz Günther | Summary: The Orion Nebula Cluster (ONC) is the closest site of very young ($sim$ 1 Myrs) massive star formation. The ONC hosts more than 1600 young and X-ray bright stars with […]


Continue.. The Nature of X-Rays from Young Stellar Objects in the Orion Nebula Cluster — A Chandra HETGS Legacy Project

The Nature of X-Rays from Young Stellar Objects in the Orion Nebula Cluster — A Chandra HETGS Legacy Project

Kavli Affiliate: David P. Huenemoerder | First 5 Authors: Norbert S. Schulz, David P. Huenemoerder, David A. Principe, Marc Gagne, Hans Moritz Günther | Summary: The Orion Nebula Cluster (ONC) is the closest site of very young ($sim$ 1 Myrs) massive star formation. The ONC hosts more than 1600 young and X-ray bright stars with […]


Continue.. The Nature of X-Rays from Young Stellar Objects in the Orion Nebula Cluster — A Chandra HETGS Legacy Project

The Nature of X-Rays from Young Stellar Objects in the Orion Nebula Cluster — A Chandra HETGS Legacy Project

Kavli Affiliate: Norbert S. Schulz | First 5 Authors: Norbert S. Schulz, David P. Huenemoerder, David A. Principe, Marc Gagne, Hans Moritz Günther | Summary: The Orion Nebula Cluster (ONC) is the closest site of very young ($sim$ 1 Myrs) massive star formation. The ONC hosts more than 1600 young and X-ray bright stars with […]


Continue.. The Nature of X-Rays from Young Stellar Objects in the Orion Nebula Cluster — A Chandra HETGS Legacy Project

Small Instanton Effects on Composite Axion Mass

Kavli Affiliate: Satoshi Shirai | First 5 Authors: Takafumi Aoki, Masahiro Ibe, Satoshi Shirai, Keiichi Watanabe, | Summary: This paper investigates the impact of small instanton effects on the axion mass in the composite accidental axion (CAA) models. These models are designed to address the axion quality problem, where QCD gauge symmetry is embedded as […]


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