IF 6.5 2区物理与天体物理

Astronomy & Astrophysics Pub Date : 2025-10-10 DOI: 10.1051/0004-6361/202555762

Guillaume Chaverot, Martin Turbet, Ha Tran, Jean-Michel Hartmann, Alain Campargue, Didier Mondelain, Emeline Bolmont

{"title":"SpeCT: A state-of-the-art tool to calculate correlated-k tables and continua of CO2-H2O-N2 gas mixtures","authors":"Guillaume Chaverot, Martin Turbet, Ha Tran, Jean-Michel Hartmann, Alain Campargue, Didier Mondelain, Emeline Bolmont","doi":"10.1051/0004-6361/202555762","DOIUrl":"https://doi.org/10.1051/0004-6361/202555762","url":null,"abstract":"A key challenge in modeling (exo)planetary atmospheres lies in generating extensive opacity datasets that cover the wide variety of possible atmospheric composition, pressure, and temperature conditions. This critical step requires specific knowledge and can be considerably time-consuming. To circumvent this issue, most available codes approximate the total opacity by summing the contributions of individual molecular species during the radiative transfer calculation. This approach neglects inter-species interactions, which can be an issue for precisely estimating the climate of planets. To produce accurate opacity data, such as correlated-k tables, χ factor corrections of the far wings of the line profile are required. We propose an update of the χ factors of CO2 absorption lines that are relevant for terrestrial planets (pure CO2, CO2-N2, and CO2-H2O). These new factors are already implemented in an original user-friendly open-source tool, named SpeCT, designed to calculate high-resolution spectra. This tool produces correlated-k tables for mixtures made of H2O, CO2, and N2, and accounts for inter-species broadening. In order to facilitate future updates of these χ factors, we also provide a review of all the relevant laboratory measurements available in the literature for the considered mixtures. Finally, we provide in this work eight different correlated-k tables and continua for pure CO2, CO2-N2, CO2-H2O, and CO2-H2O-N2 mixtures based on the MT_CKD formalism (for H2O), and calculated using SpeCT. These opacity data can be used to study various planets and atmospheric conditions, such as Earth’s paleo-climates, Mars, Venus, Magma ocean exoplanets, and telluric exoplanets.","PeriodicalId":8571,"journal":{"name":"Astronomy & Astrophysics","volume":"76 1","pages":""},"PeriodicalIF":6.5,"publicationDate":"2025-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145277459","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hot Flare Precursor Events in GOES 1-s Data: Filament Eruptions GOES 1-s中的热耀斑前兆事件数据：长丝喷发

IF 2.4 3区物理与天体物理

Solar Physics Pub Date : 2025-10-10 DOI: 10.1007/s11207-025-02556-3

Hugh Hudson

{"title":"Hot Flare Precursor Events in GOES 1-s Data: Filament Eruptions","authors":"Hugh Hudson","doi":"10.1007/s11207-025-02556-3","DOIUrl":"10.1007/s11207-025-02556-3","url":null,"abstract":"<div>Solar flares exhibit precursor soft X-ray emission at high temperatures (the Hot Onset Precursor Event, here HOPE for short). This phenomenon is readily seen for events at or above the GOES C-class, but at present we do not know whether or not a “pure” filament-eruption event, such as one coming from the polar-crown filament zone, also exhibits this property. We study this question using both older and more modern GOES/XRS soft X-ray data. The currently operating GOES-R spacecraft (GOES-16 through GOES-19) have different sensor technology and also higher cadence than in the earlier satellites in the series, and so we devote an Appendix to describing these data from the point of view of a user interested in the detection of faint sources; most GOES/XRS users focus on flare observations, rather than the quiet Sun. Because the HOPE signatures appear at the very beginning of the development of a flare, they require study at the lowest flux levels. Our searches both with GOES-R and earlier data do not detect HOPE in purely filament-eruption events. At a representative HOPE temperature of 10 MK, the emission measure for any HOPE source must be less than about (10^{46}text{ cm}^{-3}).</div>","PeriodicalId":777,"journal":{"name":"Solar Physics","volume":"300 10","pages":""},"PeriodicalIF":2.4,"publicationDate":"2025-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145256220","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Generalised Harrison transformations and black diholes in Einstein-ModMax Einstein-ModMax中的广义哈里森变换和黑双洞

IF 5.5 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2025-10-10 DOI: 10.1007/JHEP10(2025)091

Ana Bokulić, Carlos A. R. Herdeiro

引用次数: 0

Computational Geometry Based on Quantum Secure Multi-Party Summation and Multiplication 基于量子安全多方求和与乘法的计算几何

IF 1.7 4区物理与天体物理

International Journal of Theoretical Physics Pub Date : 2025-10-10 DOI: 10.1007/s10773-025-06138-8

Yongli Tang, Jianzhao Liu, Yongli Wang, Jinxia Yu

{"title":"Computational Geometry Based on Quantum Secure Multi-Party Summation and Multiplication","authors":"Yongli Tang, Jianzhao Liu, Yongli Wang, Jinxia Yu","doi":"10.1007/s10773-025-06138-8","DOIUrl":"10.1007/s10773-025-06138-8","url":null,"abstract":"<div>Secure multi-party computational geometry is a crucial application domain of secure multi-party computation. Existing secure multi-party computation geometry protocols suffer from inefficiency and insufficient resistance to quantum attacks in computational geometry tasks. Meanwhile, quantum computing offers new possibilities to address these challenges through its inherent superposition and entanglement properties. To address the single-point trust risk in existing quantum summation or multiplication protocols, we redesign workflows by delegating critical tasks (quantum state preparation and result announcement) to a semi-honest third party. This prevents the initiator from accessing intermediate results while preserving the quantum-resistant properties of the underlying primitives. Based on this optimized framework, we construct efficient quantum-secure computational geometry protocols, including a two-party distance protocol and a polyhedron volume protocol with reduced third-party involvement. To our knowledge, we also present the first protocol for multi-party polygon area computation in quantum settings. The correctness and efficiency are formally analyzed, while heuristic security arguments against specific attacks are provided under defined assumptions.</div>","PeriodicalId":597,"journal":{"name":"International Journal of Theoretical Physics","volume":"64 10","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145256708","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Coherent Beam Combination and Vortex Beam Generation Enabled by Silicon-Based Phase-Control Module in Phased Fiber Laser Array 基于硅基相位控制模块的相控光纤激光器阵列相干光束组合与涡流光束产生

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2025-10-10 DOI: 10.1021/acsphotonics.5c01441

Ran Yang, Xu Yang, Ao Tang, Feifei Xu, Mingyan Lin, Feng Li, Chao Geng, Xingyang Li

引用次数: 0

Aperiodic dissipation as a mechanism for steady-state localization 非周期耗散作为稳态局域化的机制

IF 3.7 2区物理与天体物理

Physical Review B Pub Date : 2025-10-10 DOI: 10.1103/qprv-gf5g

Shilpi Roy, Jiangbin Gong

引用次数: 0

Low-temperature phenomenology of gap inhomogeneity in cuprate superconductors: High-energy granularity, low-energy homogeneity, and spectral kinks 铜超导体间隙非均匀性的低温现象：高能粒度、低能均匀性和光谱扭结

IF 3.7 2区物理与天体物理

Physical Review B Pub Date : 2025-10-10 DOI: 10.1103/dsbb-jhnc

Miguel Antonio Sulangi

引用次数: 0

Nontrivial magnetism in the low-carrier Kondo semimetal Ce0.9La0.1Sb revealed via neutron diffraction measurements 通过中子衍射测量揭示了低载流子近田半金属Ce0.9La0.1Sb的非平凡磁性

IF 3.7 2区物理与天体物理

Physical Review B Pub Date : 2025-10-10 DOI: 10.1103/l3ys-s77m

Masato Kubota

引用次数: 0

Coupling between a Si/SiGe Resonant Exchange Qubit and a High-Impedance Microwave Resonator Si/SiGe谐振交换量子位与高阻抗微波谐振器之间的耦合

IF 8.6 1区物理与天体物理

Physical review letters Pub Date : 2025-10-10 DOI: 10.1103/31wk-5yqp

Shun-Li Jiang, Tian-Yi Jiang, Shu-Kun Ye, Ran-Ran Cai, Tian-Yue Hao, Yong-Qiang Xu, Zong-Hu Li, Yuan Kang, Bao-Chuan Wang, Hai-Ou Li, Guang-Can Guo, Xiang-Xiang Song, Gang Cao, Guo-Ping Guo

引用次数: 0

Pedestrian trajectory prediction method based on social force – Dynamic risk field coupled graph attention network 基于社会力-动态风险场耦合图关注网络的行人轨迹预测方法

IF 3.1 3区物理与天体物理

Physica A: Statistical Mechanics and its Applications Pub Date : 2025-10-10 DOI: 10.1016/j.physa.2025.131040

Yuan Gao, Yunfeng Wu

{"title":"Pedestrian trajectory prediction method based on social force – Dynamic risk field coupled graph attention network","authors":"Yuan Gao, Yunfeng Wu","doi":"10.1016/j.physa.2025.131040","DOIUrl":"10.1016/j.physa.2025.131040","url":null,"abstract":"<div><div>Accurate pedestrian trajectory prediction plays a critical role in enhancing traffic safety at unsignalized intersections and advancing the deployment of autonomous driving technologies. To address the limitation of existing models in fully capturing the complex pedestrian-vehicle interactions at such intersections, this paper proposes a pedestrian trajectory prediction method based on a dual-domain coupling graph attention network that integrates social force and dynamic risk field models. The method employs an improved social force model to characterize pedestrian-to-pedestrian interactions and a dynamic risk field model to describe pedestrian-vehicle interactions. These interaction representations are mapped to the edge weights of the graph attention network, enabling adaptive fusion of multi-modal interaction effects. Furthermore, residual connections and a dynamic gating mechanism are incorporated to enhance feature propagation and adaptively balance the contributions of pedestrian and vehicle features. Finally, a LSTM-based encoder-decoder framework is utilized to generate the predicted trajectories. Experimental results on the DUT (Dalian University of Technology Anti-UAV Dataset) and SDD (Stanford Drone Dataset) demonstrate that the proposed method significantly improves the accuracy and reliability of pedestrian trajectory prediction in complex pedestrian-vehicle interaction scenarios.</div></div>","PeriodicalId":20152,"journal":{"name":"Physica A: Statistical Mechanics and its Applications","volume":"680 ","pages":"Article 131040"},"PeriodicalIF":3.1,"publicationDate":"2025-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145270568","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

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