Resolving information loss paradox with Euclidean path integral

Kavli Affiliate: Misao Sasaki | First 5 Authors: Pisin Chen, Misao Sasaki, Dong-han Yeom, Junggi Yoon, | Summary: The information loss paradox remains unresolved ever since Hawking’s seminal discovery of black hole evaporation. In this essay, we revisit the entanglement entropy via Euclidean path integral (EPI) and allow for the branching of semi-classical histories during […]


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Linear Sigma Dark Matter

Kavli Affiliate: Hitoshi Murayama | First 5 Authors: Dan Kondo, Robert McGehee, Tom Melia, Hitoshi Murayama, | Summary: We present a model of self-interacting dark matter based on QCD-like theories and inspired by the proximity of $a_0(980pm 20)$ to the $Kbar{K}(990)$ threshold. Dark matter is comprised of dark pions which self-scatter via the $sigma$ resonance […]


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Non-Universal Stellar Initial Mass Functions: Large Uncertainties in Star Formation Rates at $zapprox 2-4$ and Other Astrophysical Probes

Kavli Affiliate: Shunsaku Horiuchi | First 5 Authors: Joshua J. Ziegler, Thomas D. P. Edwards, Anna M. Suliga, Irene Tamborra, Shunsaku Horiuchi | Summary: We explore the assumption, widely used in many astrophysical calculations, that the stellar initial mass function (IMF) is universal across all galaxies. By considering both a canonical Salpeter-like IMF and a […]


Continue.. Non-Universal Stellar Initial Mass Functions: Large Uncertainties in Star Formation Rates at $zapprox 2-4$ and Other Astrophysical Probes

Over-the-Air Federated Learning with Joint Adaptive Computation and Power Control

Kavli Affiliate: Jia Liu | First 5 Authors: Haibo Yang, Peiwen Qiu, Jia Liu, Aylin Yener, | Summary: This paper considers over-the-air federated learning (OTA-FL). OTA-FL exploits the superposition property of the wireless medium, and performs model aggregation over the air for free. Thus, it can greatly reduce the communication cost incurred in communicating model […]


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New constraint on the tensor-to-scalar ratio from the $Planck$ and BICEP/Keck Array data using the profile likelihood

Kavli Affiliate: Eiichiro Komatsu | First 5 Authors: Paolo Campeti, Eiichiro Komatsu, , , | Summary: We derive a new upper bound on the tensor-to-scalar ratio parameter $r$ using the frequentist profile likelihood method. We vary all the relevant cosmological parameters of the $Lambda$CDM model, as well as the nuisance parameters. Unlike the Bayesian analysis […]


Continue.. New constraint on the tensor-to-scalar ratio from the $Planck$ and BICEP/Keck Array data using the profile likelihood

New constraint on the tensor-to-scalar ratio from the $Planck$ and BICEP/Keck Array data using the profile likelihood

Kavli Affiliate: Eiichiro Komatsu | First 5 Authors: Paolo Campeti, Eiichiro Komatsu, , , | Summary: We derive a new upper bound on the tensor-to-scalar ratio parameter $r$ using the frequentist profile likelihood method. We vary all the relevant cosmological parameters of the $Lambda$CDM model, as well as the nuisance parameters. Unlike the Bayesian analysis […]


Continue.. New constraint on the tensor-to-scalar ratio from the $Planck$ and BICEP/Keck Array data using the profile likelihood

Concordance between observations and simulations in the evolution of the mass relation between supermassive black holes and their host galaxies

Kavli Affiliate: John D. Silverman | First 5 Authors: Xuheng Ding, John D. Silverman, Tommaso Treu, Junyao Li, Aklant K. Bhowmick | Summary: We carry out a comparative analysis of the relation between the mass of supermassive black holes (BHs) and the stellar mass of their host galaxies at $0.2<z<1.7$ using well-matched observations and multiple […]


Continue.. Concordance between observations and simulations in the evolution of the mass relation between supermassive black holes and their host galaxies

Concordance between observations and simulations in the evolution of the mass relation between supermassive black holes and their host galaxies

Kavli Affiliate: John D. Silverman | First 5 Authors: Xuheng Ding, John D. Silverman, Tommaso Treu, Junyao Li, Aklant K. Bhowmick | Summary: We carry out a comparative analysis of the relation between the mass of supermassive black holes (BHs) and the stellar mass of their host galaxies at $0.2<z<1.7$ using well-matched observations and multiple […]


Continue.. Concordance between observations and simulations in the evolution of the mass relation between supermassive black holes and their host galaxies

On the faintest solar coronal hard X-rays observed with FOXSI

Kavli Affiliate: Tadayuki Takahashi | First 5 Authors: Juan Camilo Buitrago-Casas, Lindsay Glesener, Steven Christe, Säm Krucker, Juliana Vievering | Summary: Solar nanoflares are small eruptive events releasing magnetic energy in the quiet corona. If nanoflares follow the same physics as their larger counterparts, they should emit hard X-rays (HXRs) but with a rather faint […]


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More on Fake GUT

Kavli Affiliate: Satoshi Shirai | First 5 Authors: Masahiro Ibe, Satoshi Shirai, Motoo Suzuki, Keiichi Watanabe, Tsutomu T. Yanagida | Summary: It is remarkable that the matter fields in the Standard Model (SM) are apparently unified into the $mathrm{SU}(5)$ representations. A straightforward explanation of this fact is to embed all the SM gauge groups into […]


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