klaurent – Page 80 – Kavli Institute Pre-Print Publications

Cosmological baryon spread and impact on matter clustering in CAMELS

Posted by klaurent July 21, 2023MIT

Kavli Affiliate: Mark Vogelsberger | First 5 Authors: Matthew Gebhardt, Daniel Anglés-Alcázar, Josh Borrow, Shy Genel, Francisco Villaescusa-Navarro | Summary: We quantify the cosmological spread of baryons relative to their initial neighboring dark matter distribution using thousands of state-of-the-art simulations from the Cosmology and Astrophysics with MachinE Learning Simulations (CAMELS) project. We show that dark […]

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Four years of Type Ia Supernovae Observed by TESS: Early Time Light Curve Shapes and Constraints on Companion Interaction Models

Posted by klaurent July 21, 2023MIT

Kavli Affiliate: George R. Ricker | First 5 Authors: M. M. Fausnaugh, P. J. Vallely, M. A. Tucker, C. S. Kochanek, B. J. Shappee | Summary: We present 307 Type Ia supernova (SN) light curves from the first four years of the TESS mission. We use this sample to characterize the shapes of the early […]

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Complex magnetic and spatial symmetry breaking from correlations in kagome flat bands

Posted by klaurent July 21, 2023Berkeley

Kavli Affiliate: Joel E. Moore | First 5 Authors: Yu-Ping Lin, Chunxiao Liu, Joel E. Moore, , | Summary: We present the mean-field phase diagram of electrons in a kagome flat band with repulsive interactions. In addition to flat-band ferromagnetism, the Hartree-Fock analysis yields cascades of unconventional magnetic orders driven by onsite repulsion as filling […]

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Sagnac interferometry for high-sensitivity optical measurements of spin-orbit torque

Posted by klaurent July 21, 2023Cornell

Kavli Affiliate: Daniel C. Ralph | First 5 Authors: Saba Karimeddiny, Thow Min Jerald Cham, Orion Smedley, Daniel C. Ralph, Yunqiu Kelly Luo | Summary: Sagnac interferometry can provide a significant improvement in signal-to-noise ratio compared to conventional magnetic imaging based on the magneto-optical Kerr effect (MOKE). We show that this improvement is sufficient to […]

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Discovery and characterisation of two Neptune-mass planets orbiting HD 212729 with TESS

Posted by klaurent July 21, 2023MIT

Kavli Affiliate: Sara Seager | First 5 Authors: David J. Armstrong, Ares Osborn, Vardan Adibekyan, Elisa Delgado-Mena, Saeed Hojjatpanah | Summary: We report the discovery of two exoplanets orbiting around HD 212729 (TOI,1052, TIC 317060587), a $T_{rm eff}=6146$K star with V=9.51 observed by TESS in Sectors 1 and 13. One exoplanet, TOI-1052b, is Neptune-mass and […]

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The Third Fermi Large Area Telescope Catalog of Gamma-ray Pulsars

Posted by klaurent July 20, 2023Stanford

Kavli Affiliate: Maria Elena Monzani | First 5 Authors: David A. Smith, Philippe Bruel, Colin J. Clark, Lucas Guillemot, Matthew T. Kerr | Summary: We present 294 pulsars found in GeV data from the Large Area Telescope (LAT) on the Fermi Gamma-ray Space Telescope. Another 33 millisecond pulsars (MSPs) discovered in deep radio searches of […]

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A bound on the free energy of tensionless membranes

Posted by klaurent July 20, 2023UCSB

Kavli Affiliate: Mark J. Bowick | First 5 Authors: Francesco Serafin, Mark J. Bowick, , , | Summary: Using the proof of Willmore’s conjecture by Marques and Neves, we conjecture that the free energy of tensionless fluid membranes of arbitrary genus has an upper bound. This implies that the average genus of such a membrane, […]

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Calcium-permeable AMPA receptors govern PV neuron feature selectivity

Posted by klaurent July 20, 2023September 26, 2023Hopkins

Kavli Affiliate: Dwight Bergles, Seth Blackshaw | Authors: Ingie Hong, Juhyun Kim, Thomas Hainmueller, Dong Won Kim, Richard C. Johnson, Soo Hyun Park, Nathachit Limjunyawong, Zhuonan Yang, David Cheon, Taeyoung Hwang, Amit Agarwal, Thibault Cholvin, Fenna M. Krienen, Steven A. McCarroll, Xinzhong Dong, David A. Leopold, Seth Blackshaw, Dwight E. Bergles, Marlene Bartos, Solange P. […]

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Effort cost of harvest affects decisions and movement vigor of marmosets during foraging

Posted by klaurent July 19, 2023July 31, 2023Hopkins

Kavli Affiliate: Reza Shadmehr | Authors: Paul Hage, In Kyu Jang, Vivian Looi, Mohammad Amin Fakharian, Simon P Orozco, Ehsan Sedaghat-Nejad, Jay Pi and Reza Shadmehr | Summary: We prefer to decline effortful rewards, but if the circumstances require it, we will move only slowly to harvest them. Why should economic variables such as reward […]

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Direct observation of chiral edge current at zero magnetic field in odd-layer MnBi$_2$Te$_4$

Posted by klaurent July 19, 2023July 31, 2023Peking

Kavli Affiliate: Jing Wang | First 5 Authors: Jinjiang Zhu, Yang Feng, Xiaodong Zhou, Yongchao Wang, Zichen Lian | Summary: The chiral edge current is the boundary manifestation of the Chern number of a quantum anomalous Hall (QAH) insulator. Its direct observation is assumed to require well-quantized Hall conductance, and is so far lacking. The […]

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