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๐Ÿ” adrian weller ๐Ÿ“‚ Physics
Showing 5111 results for "adrian weller" in Physics
Physics Preprint PDF DOI

Asteroseismic modelling of main-sequence solar-like stars and Kepler exoplanet host stars with the FICO procedure I. Catalogue of fundamental stellar properties

Jerome Betrisey, Daniel R. Reese, Camilla Pezzotti, Marie-Jo Goupil, Margarida S. Cunha ยท 2026

We present detailed asteroseismic modelling of 95 main-sequence solar-like stars and Kepler exoplanet host stars using the FICO procedure, a three-step method that combines forward and inverse techniqโ€ฆ

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Physics Preprint PDF DOI

Multi-wavelength polarisation imaging with inverse designed metasurfaces

Sarah E. Dean, Neuton Li, Josephine Munro, Benjamin Laudert, Thomas Siefke, Quyet Ngo, Robert Sharp, Dragomir N. Neshev, Falk Eilenberger, Andrey A. Sukhorukov ยท 2026

Multispectral polarisation imaging has a broad range of applications, from biological cell imaging to agricultural remote surveying. For such applications, especially involving lightweight unmanned aeโ€ฆ

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Physics Preprint PDF DOI

Characterizing six seismic solar analogs observed by Kepler, K2, and HERMES

R. A. Garcia, S. Mathur, G. T. Hookway, D. Godoy-Rivera, T. Masseron, J. Betrisey, G. Buldgen, C. Lindsay, T. S. Metcalfe, O. J. Scutt, A. Stokholm, P. G. Beck, O. Benomar, G. R. Davies, A. Jimenez, J. Merc, M. B. Nielsen, E. Panetier, F. Perez Hernandez, L. Borg, S. N. Breton, L. Debacker, A. Escorza, D. H. Grossmann, A. Hamy, B. Liagre, M. N. Lund, S. Mathis, D.B. Palakkatharappil, A. R. G. Santos, V. Delsanti, L. Gonzalez-Cuesta, V. Fox, N. Proust ยท 2026

Solar analogs, stars that closely match the fundamental properties of the Sun, provide key benchmarks for testing stellar structure and evolution across different ages and activity levels. Their detaiโ€ฆ

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Physics Preprint PDF DOI

Quantum scattering of droplets by wells and barriers in one-dimensional Bose-Bose mixtures

Sherzod R. Otajonov, Uktambek R. Eshimbetov, Bakhram A. Umarov, Fatkhulla Kh. Abdullaev ยท 2026

We investigate, both analytically and numerically, the scattering of quasi-one-dimensional quantum droplets from P\"oschl-Teller potential wells and barriers. For attractive wells, we find a sharp traโ€ฆ

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Physics Preprint PDF DOI

Substitutional platinum as an efficient nonradiative recombination center in silicon

Zhenxing Dai, Menglin Huang, Xin-Gao Gong, Shiyou Chen ยท 2026

Platinum (Pt) is widely used for carrier-lifetime control in silicon power devices, yet the microscopic nonradiative recombination mechanism of the substitutional platinum ($\text{Pt}_\text{Si}$) dopaโ€ฆ

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Physics Preprint PDF DOI

Asteroseismic analysis of RY Leporis: the post-main sequence HADS in a binary system

Wojciech Niewiadomski, Jadwiga Daszynska-Daszkiewicz, Przemys{l}aw Walczak, Wojciech Szewczuk, Eloy Rodriguez, Piotr Ko{l}aczek-Szymanski, Aliz Derekas ยท 2026

We present a comprehensive study of the pulsating primary component of the long-period binary system RY Lep. The spectral energy distribution and the absence of detectable lines indicate that the compโ€ฆ

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Physics Preprint PDF DOI

Proximity Ferroelectricity Driven by Mobile High-Miller-Index Domain Walls

Changming Ke, Shi Liu ยท 2026

Wurtzite ferroelectrics such as scandium-doped aluminum nitride (AlScN) are promising for next-generation memory because of their compatibility with semiconductor processes and strong spontaneous polaโ€ฆ

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Physics Preprint PDF DOI

Retrieving intrinsic polarization anisotropies of nanostructures using differential Mueller matrix polarimetry

Jeeban Kumar Nayak, Ebru Buhara, Olivier J.F. Martin ยท 2026

Accurate characterization of polarization dependent light matter interactions in nanostructured systems is paramount for the development of chiral metasurfaces. It is also often challenging, because mโ€ฆ

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Physics Preprint PDF DOI

High Dynamic Range enhancement in Mueller matrix polarimetry

Lourdes Camblor-Navarro, Iago Pardo, Oriol Arteaga ยท 2026

Mueller matrix (MM) polarimetry is an effective, non-invasive tool for retrieving information from complex media. However, the finite dynamic range of optical detectors poses a significant challenge wโ€ฆ

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Physics Preprint PDF DOI

Stripping Symmetry: Electrochemical Oxidation to a Superconducting Polar Metal in Au2Pb0.914P2

Scott B. Lee, Stephanie R. Dulovic, Joseph W. Stiles, Xin Zhang, Fatmagul Katmer, Sudipta Chatterjee, Jaime Moya, Allana G. Iwanicki, Abby N. Neill, Chris Lygouras, Tieyan Chang, Tyrel M. McQueen, Yu-Sheng Chen, Leslie M. Schoop ยท 2026

Polar metals and noncentrosymmetric superconductors are exceptionally rare, yet their broken inversion symmetry can give rise to emergent electronic phenomena including mixed singlet-triplet supercondโ€ฆ

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Physics Preprint PDF DOI

Photoinduced orbital polarization and Jahn-Teller effect in RNiO$_3$

Sangeeta Rajpurohit, Sheikh Rubaiat Ul Haque, Aaron M. Lindenberg, Peter E. Blochl, Tadashi Ogitsu ยท 2026

The orbital degree of freedom in rare-earth nickelates is typically inactive across the temperature-driven metal-insulator transition, where the system develops two inequivalent Ni sites associated wiโ€ฆ

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Novel microscopic approaches for Spin-Isospin excitations and Beta-decay

Hiroyuki Sagawa ยท 2026

We explore unsolved nuclear structure problems related with the spin and isospin degree of freedom by using microscopic models which accommodate realistic isoscalar and isovector pairing interactions,โ€ฆ

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Physics Preprint PDF DOI

Coarse Graining Reveals a Fluctuation-theorem-like Asymmetry in Financial Markets

Jian Gao, Lufeng Zhang, Ping Fang, Pu Ke, Jin Wu, Yue Liu, Haijun Zhou ยท 2026

Fluctuation theorems show how coarse graining transforms microscopic symmetry into observable irreversibility. Here we ask whether an analogous symmetrybased diagnostic can be constructed for financiaโ€ฆ

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Spherical-tensor description of the Jahn--Teller--Hubbard molecule and local electron--phonon entanglement

Koichiro Takahashi, Shuichiro Ebata, Naotaka Yoshinaga, Shintaro Hoshino ยท 2026

We investigate the localized-electron character of the Mott-insulating phase in A$_3$C$_{60}$ using a single-site multiorbital electron model coupled to anisotropic molecular vibrations (Jahn--Teller โ€ฆ

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Machine-learning modeling of magnetization dynamics in quasi-equilibrium and driven metallic spin systems

Gia-Wei Chern, Yunhao Fan, Sheng Zhang, Puhan Zhang ยท 2026

We review recent advances in machine-learning (ML) force-field methods for large-scale Landau-Lifshitz-Gilbert (LLG) simulations of metallic spin systems. We generalize the Behler-Parrinello (BP) ML aโ€ฆ

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Deep Photonic Reservoir Computer Meets UAV Control: An ultra-fast learning-based compensator for agile flight in confined space

Qinxiao Ma, Ruiqian Li, Cheng Wang, Yang Wang ยท 2026

Unmanned aerial vehicles (UAVs) operating in confined, cluttered environments face significant performance degradation due to nonlinear, time-varying unmodeled dynamics-such as ground/ceiling effects โ€ฆ

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Physics Preprint PDF DOI

Near-critical magnetic fields in Kepler red giants

S. Deheuvels, J. Ballot, F. Lignieres, G. Li, M. Villate ยท 2026

The recent seismic detection of magnetic fields in red giants cores has given the opportunity to characterize these fields, potentially giving information about their origin and their role in the inteโ€ฆ

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Physics Preprint PDF DOI

PEACC -- Precision Emitter for 21 cm Array Coherent Calibration

Kalyani Bhopi, Morgan Cole, Mallory Helfenbein, Will Tyndall, Audrey Whitmer, Kevin Bandura, Laura Newburgh ยท 2026

Foreground mitigation remains a central challenge for 21 cm intensity mapping experiments, which require precise, wideband calibration of telescope beams and gains. We present the Precision Emitter foโ€ฆ

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Machine Learning the order-disorder Jahn-Teller transition in LaMnO$_3$

Lorenzo Celiberti, Alexander Ehrentraut, Luca Leoni, Cesare Franchini ยท 2026

We investigate the Jahn-Teller structural phase transition in LaMnO$_3$ at $T_{JT} \simeq 750$ K using molecular dynamics simulations based on machine-learning force fields trained on ab initio data. โ€ฆ

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Physics Preprint PDF DOI

Linearized Q-Ball Perturbations

Jarah Evslin, Hui Liu, Tomasz Romanczukiewicz, Yakov Shnir, Andrzej Wereszczynski, Piotr Ziobro ยท 2026

Linearized deformations of the thick-walled (low-amplitude) (1+1)-dimensional Q-ball may be decomposed into relativistic modes, which are roughly plane waves, and also long-wavelength corotating and cโ€ฆ

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