Towards Calibrating Financial Market Simulators with High-frequency Data

Kavli Affiliate: Feng Wang | First 5 Authors: Peng Yang, Junji Ren, Feng Wang, Ke Tang, | Summary: The fidelity of financial market simulation is restricted by the so-called "non-identifiability" difficulty when calibrating high-frequency data. This paper first analyzes the inherent loss of data information in this difficulty, and proposes to use the Kolmogorov-Smirnov test […]


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Effects of chemically homogeneous evolution of the first stars on the 21-cm signal and reionization

Kavli Affiliate: George Efstathiou | First 5 Authors: Boyuan Liu, Daniel Kessler, Thomas Gessey-Jones, Jiten Dhandha, Anastasia Fialkov | Summary: The first generation of stars, known as Population III (Pop III), played a crucial role in the early Universe through their unique formation environment and metal-free composition. These stars can undergo chemically homogeneous evolution (CHE) […]


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A dual-scale stochastic analysis framework for creep failure considering microstructural randomness

Kavli Affiliate: Xiang Zhang | First 5 Authors: Weichen Kong, Yanwei Dai, Xiang Zhang, Yinghua Liu, | Summary: Creep failure under high temperatures is a complex multiscale and multi-mechanism issue involving inherent microstructural randomness. To investigate the effect of microstructures on the uniaxial/multiaxial creep failure, a dual-scale stochastic analysis framework is established to introduce the […]


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Polarization Position Angle Swing and the Rotating Vector Model of Repeating Fast Radio Bursts

Kavli Affiliate: Kejia Lee | First 5 Authors: Xiaohui Liu, Heng Xu, Jiarui Niu, Yongkun Zhang, Jinchen Jiang | Summary: Fast radio bursts (FRBs), typically highly polarized, usually have a nearly constant polarization position angle (PA) during each burst. Some bursts show significant PA variations, and one of them was claimed to have a PA […]


Continue.. Polarization Position Angle Swing and the Rotating Vector Model of Repeating Fast Radio Bursts