Gravitational waves from primordial black hole isocurvature: the effect of non-Gaussianities

Kavli Affiliate: Misao Sasaki | First 5 Authors: Xin-Chen He, Yi-Fu Cai, Xiao-Han Ma, Theodoros Papanikolaou, Emmanuel N. Saridakis | Summary: Ultra-light primordial black holes (PBHs) with masses $M_{rm PBH}<5times 10^8mathrm{g}$ can dominate transiently the energy budget of the Universe and reheat the Universe through their evaporation taking place before Big Bang Nucleosynthesis. The isocurvature […]


Continue.. Gravitational waves from primordial black hole isocurvature: the effect of non-Gaussianities

Topological K-theory of quasi-BPS categories for Higgs bundles

Kavli Affiliate: Yukinobu Toda | First 5 Authors: Tudor Pădurariu, Yukinobu Toda, , , | Summary: In a previous paper, we introduced quasi-BPS categories for moduli stacks of semistable Higgs bundles. Under a certain condition on the rank, Euler characteristic, and weight, the quasi-BPS categories (called BPS in this case) are non-commutative analogues of Hitchin […]


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Detection of Dark Matter Coherent Scattering via Torsion Balance with Test Bodies of Different Sizes

Kavli Affiliate: Shigeki Matsumoto | First 5 Authors: Shigeki Matsumoto, Jie Sheng, Chuan-Yang Xing, , | Summary: Dark matter with mass in the crossover range between wave dark matter and particle dark matter, around $(10^{-3},, 10^3),$eV, remains relatively unexplored by terrestrial experiments. In this mass regime, dark matter scatters coherently with macroscopic objects. The effect […]


Continue.. Detection of Dark Matter Coherent Scattering via Torsion Balance with Test Bodies of Different Sizes

New shape for cross-bispectra in Chern-Simons gravity

Kavli Affiliate: Misao Sasaki | First 5 Authors: Perseas Christodoulidis, Jinn-Ouk Gong, Wei-Chen Lin, Maria Mylova, Misao Sasaki | Summary: Chern-Simons gravity is known to suffer from graviton ghost production during inflation, which suppresses the parity-violating power spectrum at scales relevant to cosmic microwave background observations. In this work, we show that allowing the initial […]


Continue.. New shape for cross-bispectra in Chern-Simons gravity

A Post-Starburst Pathway to Forming Massive Galaxies and Their Black Holes at z>6

Kavli Affiliate: John D. Silverman | First 5 Authors: Masafusa Onoue, Xuheng Ding, John D. Silverman, Yoshiki Matsuoka, Takuma Izumi | Summary: Understanding the rapid formation of supermassive black holes (SMBHs) in the early universe requires an understanding of how stellar mass grows in the host galaxies. Here, we perform an analysis of rest-frame optical […]


Continue.. A Post-Starburst Pathway to Forming Massive Galaxies and Their Black Holes at z>6

Improving Anomalous Sound Detection via Low-Rank Adaptation Fine-Tuning of Pre-Trained Audio Models

Kavli Affiliate: Jia Liu | First 5 Authors: Xinhu Zheng, Anbai Jiang, Bing Han, Yanmin Qian, Pingyi Fan | Summary: Anomalous Sound Detection (ASD) has gained significant interest through the application of various Artificial Intelligence (AI) technologies in industrial settings. Though possessing great potential, ASD systems can hardly be readily deployed in real production sites […]


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S-dual of Hamiltonian $mathbf G$ spaces and relative Langlands duality

Kavli Affiliate: Hiraku Nakajima | First 5 Authors: Hiraku Nakajima, , , , | Summary: The S-dual $(mathbf G^veecurvearrowrightmathbf M^vee)$ of the pair $(mathbf Gcurvearrowrightmathbf M)$ of a smooth affine algebraic symplectic manifold $mathbf M$ with hamiltonian action of a complex reductive group $mathbf G$ was introduced implicitly in [arXiv:1706.02112] and explicitly in [arXiv:1807.09038] under […]


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Hitting the mark: Optimising Marked Power Spectra for Cosmology

Kavli Affiliate: Jia Liu | First 5 Authors: Jessica A. Cowell, David Alonso, Jia Liu, , | Summary: Marked power spectra provide a computationally efficient way to extract non-Gaussian information from the matter density field using the usual analysis tools developed for the power spectrum without the need for explicit calculation of higher-order correlators. In […]


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Can We Theoretically Quantify the Impacts of Local Updates on the Generalization Performance of Federated Learning?

Kavli Affiliate: Jia Liu | First 5 Authors: Peizhong Ju, Haibo Yang, Jia Liu, Yingbin Liang, Ness Shroff | Summary: Federated Learning (FL) has gained significant popularity due to its effectiveness in training machine learning models across diverse sites without requiring direct data sharing. While various algorithms along with their optimization analyses have shown that […]


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Pureformer-VC: Non-parallel One-Shot Voice Conversion with Pure Transformer Blocks and Triplet Discriminative Training

Kavli Affiliate: Jia Liu | First 5 Authors: Wenhan Yao, Zedong Xing, Xiarun Chen, Jia Liu, Yongqiang He | Summary: One-shot voice conversion(VC) aims to change the timbre of any source speech to match that of the target speaker with only one speech sample. Existing style transfer-based VC methods relied on speech representation disentanglement and […]


Continue.. Pureformer-VC: Non-parallel One-Shot Voice Conversion with Pure Transformer Blocks and Triplet Discriminative Training