dbos – Page 426 – Kavli Institute Pre-Print Publications

Effects of mirror birefringence and its fluctuations to laser interferometric gravitational wave detectors

Posted by dbos July 31, 2023Caltech

Kavli Affiliate: Rana X. Adhikari | First 5 Authors: Yuta Michimura, Haoyu Wang, Francisco Salces-Carcoba, Christopher Wipf, Aidan Brooks | Summary: Crystalline materials are promising candidates as substrates or high-reflective coatings of mirrors to reduce thermal noises in future laser interferometric gravitational wave detectors. However, birefringence of such materials could degrade the sensitivity of gravitational […]

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On the effects of mirror birefringence and its fluctuations to laser interferometric gravitational wave detectors

Posted by dbos July 31, 2023Caltech

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Bilayer $t$-$J$-$J_perp$ Model and Magnetically Mediated Pairing in the Pressurized Nickelate La$_3$Ni$_2$O$_7$

Posted by dbos July 31, 2023UCAS

Kavli Affiliate: Gang Su | First 5 Authors: Xing-Zhou Qu, Dai-Wei Qu, Jialin Chen, Congjun Wu, Fan Yang | Summary: The recently discovered nickelate superconductor La$_3$Ni$_2$O$_7$ has a high transition temperature near 80 K under pressure, which offers additional avenues of unconventional superconductivity. Here with state-of-the-art tensor-network methods, we study a bilayer $t$-$J$-$J_perp$ model for […]

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Generating operators of symmetry breaking — from discrete to continuous

Posted by dbos July 31, 2023Tokyo

Kavli Affiliate: Toshiyuki Kobayashi | First 5 Authors: Toshiyuki Kobayashi, , , , | Summary: Based on the "generating operator" of the Rankin–Cohen brackets introduced in Kobayashi-Pevzner [arXiv:2306.16800], we present a method to construct various fundamental operators with continuous parameters such as invariant trilinear forms on infinite-dimensional representations, the Fourier and the Poisson transforms on […]

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Echoes Beyond Points: Unleashing the Power of Raw Radar Data in Multi-modality Fusion

Posted by dbos July 31, 2023Berkeley

Kavli Affiliate: Feng Wang | First 5 Authors: Yang Liu, Feng Wang, Naiyan Wang, Zhaoxiang Zhang, | Summary: Radar is ubiquitous in autonomous driving systems due to its low cost and good adaptability to bad weather. Nevertheless, the radar detection performance is usually inferior because its point cloud is sparse and not accurate due to […]

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A radio pulsar phase from SGR J1935+2154 provides clues to the magnetar FRB mechanism

Posted by dbos July 30, 2023Peking

Kavli Affiliate: Kejia Lee | First 5 Authors: Weiwei Zhu, Heng Xu, Dejiang Zhou, Lin Lin, Bojun Wang | Summary: The megajansky radio burst, FRB 20200428, and other bright radio bursts detected from the Galactic source SGR J1935+2154 suggest that magnetars can make fast radio bursts (FRBs), but the emission site and mechanism of FRB-like […]

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The proto-galaxy of Milky Way-mass haloes in the FIRE simulations

Posted by dbos July 28, 2023MIT

Kavli Affiliate: Lina Necib | First 5 Authors: Danny Horta, Emily C. Cunningham, Robyn Sanderson, Kathryn V. Johnston, Alis Deason | Summary: Observational studies are finding stars believed to be relics of the earliest stages of hierarchical mass assembly of the Milky Way (i.e., proto-Galaxy). In this work, we contextualize these findings by studying the […]

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Selective Manipulation and Tunneling Spectroscopy of Broken-Symmetry Quantum Hall States in a Hybrid-edge Quantum Point Contact

Posted by dbos July 28, 2023Peking

Kavli Affiliate: Ke Wang | First 5 Authors: Wei Ren, Xi Zhang, Jaden Ma, Xihe Han, Kenji Watanabe | Summary: We present a device architecture of hybrid-edge and dual-gated quantum point contact. We demonstrate improved electrostatic control over the separation, position, and coupling of each broken-symmetry compressible strip in graphene. Via low-temperature magneto-transport measurement, we […]

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Selective Manipulation and Tunneling Spectroscopy of Broken-Symmetry Quantum Hall States in a Hybrid-edge Quantum Point Contact

Posted by dbos July 28, 2023Peking

Kavli Affiliate: Ke Wang | First 5 Authors: , , , , | Summary: We present a device architecture of hybrid-edge and dual-gated quantum point contact. We demonstrate improved electrostatic control over the separation, position, and coupling of each broken-symmetry compressible strip in graphene. Via low-temperature magneto-transport measurement, we demonstrate selective manipulation over the evolution, […]

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An equivariant graph neural network for the elasticity tensors of all seven crystal systems

Posted by dbos July 28, 2023Berkeley

Kavli Affiliate: Kristin A. Persson | First 5 Authors: Mingjian Wen, Matthew K. Horton, Jason M. Munro, Patrick Huck, Kristin A. Persson | Summary: The elasticity tensor that describes the elastic response of a material to external forces is among the most fundamental properties of materials. The availability of full elasticity tensors for inorganic crystalline […]

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