Kavli Affiliate: Jing Wang | First 5 Authors: Haoze He, Jing Wang, Anna Choromanska, , | Summary: This work focuses on the decentralized deep learning optimization framework. We propose Adjacent Leader Decentralized Gradient Descent (AL-DSGD), for improving final model performance, accelerating convergence, and reducing the communication overhead of decentralized deep learning optimizers. AL-DSGD relies on […]
Kavli Affiliate: Ke Wang | First 5 Authors: Bibek Bhandari, Irwin Huang, Ahmed Hajr, Kagan Yanik, Bingcheng Qing | Summary: Kerr-cat qubits are bosonic qubits with autonomous protection against bit-flips. They have been studied widely using driven Superconducting Nonlinear Asymmetric Inductive eLement (SNAIL) oscillators. We theoretically investigate an alternate circuit for the Kerr-cat qubit, namely […]
Kavli Affiliate: Erin Kara | First 5 Authors: Yuhan Yao, Muryel Guolo, Francesco Tombesi, Ruancun Li, Suvi Gezari | Summary: We present the tidal disruption event (TDE) AT2022lri, hosted in a nearby ($approx!144$ Mpc) quiescent galaxy with a low-mass massive black hole ($10^4,M_odot < M_{rm BH} < 10^6,M_odot$). AT2022lri belongs to the TDE-H+He subtype. More […]
Kavli Affiliate: Naoyuki Tamura | First 5 Authors: Irumi Sugimori, Katsumi Inoue, Hidetomo Nabeshima, Torsten Schaub, Takehide Soh | Summary: We propose Large Neighborhood Prioritized Search (LNPS) for solving combinatorial optimization problems in Answer Set Programming (ASP). LNPS is a metaheuristic that starts with an initial solution and then iteratively tries to find better solutions […]
Kavli Affiliate: David A. Principe | First 5 Authors: William Grimble, Joel Kastner, Christophe Pinte, Beth Sargent, David A. Principe | Summary: Our understanding of how exoplanets form and evolve relies on analyses of both the mineralogy of protoplanetary disks and their detailed structures; however, these key complementary aspects of disks are usually studied separately. […]
Kavli Affiliate: Lijing Shao | First 5 Authors: Samuele Ronchini, Suman Bala, Joshua Wood, James Delaunay, Simone Dichiara | Summary: GW230529 is the first compact binary coalescence detected by the LIGO-Virgo-KAGRA collaboration with at least one component mass confidently in the lower mass-gap, corresponding to the range 3-5$M_{odot}$. If interpreted as a neutron star-black hole […]
Kavli Affiliate: Andrew Vanderburg | First 5 Authors: Sam Christian, Andrew Vanderburg, Juliette Becker, Adam L. Kraus, Logan Pearce | Summary: Studying the relative orientations of the orbits of exoplanets and wide-orbiting binary companions (semimajor axis greater than 100 AU) can shed light on how planets form and evolve in binary systems. Previous observations by […]
Kavli Affiliate: Masahiro Kawasaki | First 5 Authors: Kentaro Kasai, Masahiro Kawasaki, Kai Murai, Shunsuke Neda, | Summary: We study a primordial black hole (PBH) formation model based on the framework of the inhomogeneous Affleck-Dine (AD) mechanism, which can explain the seeds of supermassive black holes (SMBHs). This model, however, predicts strong clustering of SMBHs […]
Kavli Affiliate: Linhua Jiang | First 5 Authors: Linhua Jiang, Shuqi Fu, Feige Wang, Sarah E. I. Bosman, Zheng Cai | Summary: We present constraints on the spacetime variation of the fine-structure constant $alpha$ at redshifts $3<z<10$ using JWST emission-line galaxies. The galaxy sample consists of 572 high-quality spectra with strong and narrow [O III] […]
Kavli Affiliate: Andrew Vanderburg | First 5 Authors: Mary Anne Limbach, Johanna M. Vos, Andrew Vanderburg, Fei Dai, | Summary: We conduct a comprehensive search for transiting exomoons and exosatellites within 44 archival Spitzer light curves of 32 substellar worlds with estimated masses ranging between 3-30M$_{rm Jup}$. This sample’s median host mass is 16M$_{rm Jup}$, […]