Mesoscopic ultrafast nonlinear optics — The emergence of multimode quantum non-Gaussian physics

Posted by dbos Caltech

Kavli Affiliate: Alireza Marandi | First 5 Authors: Ryotatsu Yanagimoto, Edwin Ng, Marc Jankowski, Rajveer Nehra, Timothy P. McKenna | Summary: Over the last few decades, nonlinear optics has become significantly more nonlinear, traversing nearly a billionfold improvement in energy efficiency, with ultrafast nonlinear nanophotonics in particular emerging as a frontier for combining both spatial […]


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A Unified Framework for Fair Spectral Clustering With Effective Graph Learning

Posted by dbos Berkeley

Kavli Affiliate: Xiang Zhang | First 5 Authors: Xiang Zhang, Qiao Wang, , , | Summary: We consider the problem of spectral clustering under group fairness constraints, where samples from each sensitive group are approximately proportionally represented in each cluster. Traditional fair spectral clustering (FSC) methods consist of two consecutive stages, i.e., performing fair spectral […]


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GBT/Argus Observations of Molecular Gas in the Inner Regions of IC 342

Posted by dbos Stanford

Kavli Affiliate: Sarah Church | First 5 Authors: Jialu Li, Andrew I Harris, Erik Rosolowsky, Amanda Kepley, David Frayer | Summary: We report observations of the ground state transitions of $^{12}$CO, $^{13}$CO C$^{18}$O, HCN, and HCO$^+$ at 88-115 GHz in the inner region of the nearby galaxy IC 342. These data were obtained with the […]


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Nuclear Structure Effects on Hyperfine Splittings in Ordinary and Muonic Deuterium

Posted by dbos Berkeley

Kavli Affiliate: Xiang Zhang | First 5 Authors: Chen Ji, Xiang Zhang, Lucas Platter, , | Summary: Precision spectroscopy of hyperfine splitting (HFS) is a crucial tool for investigating the structure of nuclei and testing quantum electrodynamics (QED). However, accurate theoretical predictions are hindered by two-photon exchange (TPE) effects. We propose a novel formalism that […]


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Effect of Noise Estimation in Time-Domain Ringdown Analysis: A Case Study with GW150914

Posted by dbos Peking

Kavli Affiliate: Lijing Shao | First 5 Authors: Hai-Tian Wang, Lijing Shao, , , | Summary: Accurate noise estimation from gravitational wave (GW) data is critical for Bayesian inference. However, recent studies on ringdown signal, such as those by Isi et al. [1], Cotesta et al. [2], and Isi and Farr [3], have encountered disagreement […]


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Forecast of joint analysis of cosmic shear and supernovae magnification from CSST and LSST

Posted by dbos Peking

Kavli Affiliate: Hu Zhan | First 5 Authors: Ye Cao, Bin Hu, Ji Yao, Hu Zhan, | Summary: Cosmic shear and cosmic magnification reflect the same gravitational lensing field. Each of these two probes are affected by different systematics. We study the auto- and cross-correlations of the cosmic shear from the China Space Survey Telescope […]


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Forecast of joint analysis of cosmic shear and supernovae magnification from CSST and LSST

Posted by dbos Peking

Kavli Affiliate: Hu Zhan | First 5 Authors: Ye Cao, Bin Hu, Ji Yao, Hu Zhan, | Summary: Cosmic shear and cosmic magnification reflect the same gravitational lensing field. Each of these two probes are affected by different systematics. We study the auto- and cross-correlations of the cosmic shear from the China Space Survey Telescope […]


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Inducing a Tunable Skyrmion-Antiskyrmion System through Ion Beam Modification of FeGe Films

Posted by dbos Cornell

Kavli Affiliate: David Muller | First 5 Authors: M. B. Venuti, Xiyue S. Zhang, Eric J Lang, Sadhvikas J. Addamane, Hanjong Paik | Summary: Skyrmions and antiskyrmions are nanoscale swirling textures of magnetic moments formed by chiral interactions between atomic spins in magnetic non-centrosymmetric materials and multilayer films with broken inversion symmetry. These quasiparticles are […]


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Inducing a Tunable Skyrmion-Antiskyrmion System through Ion Beam Modification of FeGe Films

Posted by dbos Cornell

Kavli Affiliate: David Muller | First 5 Authors: M. B. Venuti, Xiyue S. Zhang, Eric J Lang, Sadhvikas J. Addamane, Hanjong Paik | Summary: Skyrmions and antiskyrmions are nanoscale swirling textures of magnetic moments formed by chiral interactions between atomic spins in magnetic non-centrosymmetric materials and multilayer films with broken inversion symmetry. These quasiparticles are […]


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Narrow spectra of repeating fast radio bursts: A magnetospheric origin

Posted by dbos Peking

Kavli Affiliate: Renxin Xu | First 5 Authors: Wei-Yang Wang, Yuan-Pei Yang, Hong-Bo Li, Jifeng Liu, Renxin Xu | Summary: Fast radio bursts (FRBs) can present a variety of polarization properties, and some of them have narrow spectra. We study spectral properties from perspectives of intrinsic radiation mechanisms and absorption during the waves propagating in […]


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