Tootfinder

Optical Control of Integer and Fractional Chern Insulators
William Holtzmann, Weijie Li, Eric Anderson, Jiaqi Cai, Heonjoon Park, Chaowei Hu, Takashi Taniguchi, Kenji Watanabe, Jiun-Haw Chu, Di Xiao, Ting Cao, Xiaodong Xu
https://arxiv.org/abs/2508.18639

Optical Control of Integer and Fractional Chern Insulators
Optical control of topology, particularly in the presence of electron correlations, is a fascinating topic with broad scientific and technological impact. Twisted MoTe$_2$ bilayer (tMoTe$_2$) is a newly discovered zero-field fractional Chern insulator (FCI), exhibiting the fractionally quantized anomalous Hall (FQAH) effect. Since the chirality of the edge states and sign of the Chern number are determined by the underlying ferromagnetic polarization, manipulation of ferromagnetism would realiz…

The Average Soft X-ray Spectra of eROSITA Active Galactic Nuclei
Shi-Jiang Chen, Johannes Buchner, Teng Liu, Scott Hagen, Sophia G. H. Waddell, Kirpal Nandra, Mara Salvato, Zsofi Igo, Catarina Aydar, Andrea Merloni, Qingling Ni, Jia-Lai Kang, Zhen-Yi Cai, Jun-Xian Wang, Ruancun Li, Miriam E. Ramos-Ceja, Jeremy Sanders, Antonis Georgakakis, Yi Zhang
h…

The Average Soft X-ray Spectra of eROSITA Active Galactic Nuclei
Context. AGNs are strong X-ray emitters shaped by disk-corona interactions. The soft excess (0.5-2.0 keV) reveals key information about the "warm corona" bridging the disk and hot corona. Yet, how this feature evolves with accretion properties remains poorly constrained, especially in large samples using spectral stacking. Aims. The eROSITA All-Sky Survey (eRASS:5) provides an unprecedented sample. We investigate how the average AGN X-ray spectra evolve with accretion parameters, and explore di…

Optical control over topological Chern number in moir\'e materials
Olivier Huber, Kilian Kuhlbrodt, Eric Anderson, Weijie Li, Kenji Watanabe, Takashi Taniguchi, Martin Kroner, Xiaodong Xu, Atac Imamoglu, Tomasz Smolenski
https://arxiv.org/abs/2508.19063

Optical control over topological Chern number in moiré materials
Controlling quantum matter with light offers a promising route to dynamically tune its many-body properties, ranging from band topology to superconductivity. However, achieving such optical control for strongly correlated electron systems in the steady-state has remained elusive. Here, we demonstrate all-optical switching of the spin-valley degree of freedom of itinerant ferromagnets in twisted MoTe2 homobilayers. This system uniquely features flat valley-contrasting Chern bands and exhibits a …

There was a time when, if you were lucky enough to get a piece of software stable and working well, it continued to be stable and work well.
Now we have relentless updates, whose problems are exemplified by an overnight update of my Mac to OS X 15.6 doing a factory reset of the settings of many of my programs.
Let's not even go into the behavioral changes that get pushed that invalidate all your muscle memory in order to boost some product manager's performance review.
I like stability, but it's just another casualty of this endless churn.

Inner disc and circumplanetary material in the PDS 70 system
Daniele Fasano, Myriam Benisty, Pietro Curone, Stefano Facchini, Francesco Zagaria, Tomohiro C. Yoshida, Kiyoaki Doi, Anibal Sierra, Sean Andrews, Jaehan Bae, Andrea Isella, Nicol\'as T. Kurtovic, Laura M. P\'erez, Paola Pinilla, Luna Rampinelli, Richard Teague
https://

Inner disc and circumplanetary material in the PDS 70 system
The two giant protoplanets directly imaged in the dust-depleted cavity of PDS 70 offer a unique opportunity to study ongoing planet formation. Both planets have been detected in infrared thermal emission and in H$α$, indicating active accretion. We calibrate and analyse archival ALMA Band 6 and 7 observations of PDS 70 from 2019, 2021, and 2023 to search for circumplanetary material and assess its motion. Using 2D visibility modelling of the high-resolution (~0.11"x0.08" in Band 6; ~0.05"x0.05…

Flavoured jet algorithms: a comparative study
Arnd Behring, Simone Caletti, Francesco Giuli, Radoslaw Grabarczyk, Andreas Hinzmann, Alexander Huss, Joey Huston, Ezra D. Lesser, Simone Marzani, Davide Napoletano, Rene Poncelet, Daniel Reichelt, Alberto Rescia, Gavin P. Salam, Ludovic Scyboz, Federico Sforza, Andrzej Siodmok, Giovanni Stagnitto, James Whitehead, Ruide Xu

Flavoured jet algorithms: a comparative study
The accurate identification of heavy-flavour jets, those which originate from bottom or charm quarks, is crucial for precision studies of the Standard Model and searches for new physics. However, assigning flavour to jets presents significant challenges, primarily due to issues with infrared and collinear (IRC) safety. This paper aims to address these challenges by evaluating recently-proposed jet algorithms designed to be IRC-safe and applicable in high-precision measurements. We compare these…

Measuring the Magnetic Field of a Coronal Mass Ejection from Low to Middle Corona
Xingyao Chen, Bin Chen, Sijie Yu, Surajit Mondal, Muriel Zo\"e Stiefel, Peijin Zhang, Dale E. Gary, S\"am Krucker, Marin M. Anderson, Judd D. Bowman, Ruby Byrne, Morgan Catha, Sherry Chhabra, Larry D'Addario, Ivey Davis, Jayce Dowell, Gregg Hallinan, Charlie Harnach, Greg Hellbourg, Jack Hickish, Rick Hobbs, David Hodge, Mark Hodges, Yuping Huang, Andrea Isella, Daniel C. Jacobs, Ghislain Ke…

Measuring the Magnetic Field of a Coronal Mass Ejection from Low to Middle Corona
A major challenge in understanding the initiation and evolution of coronal mass ejections (CMEs) is measuring the magnetic field of the magnetic flux ropes (MFRs) that drive CMEs. Recent developments in radio imaging spectroscopy have paved the way for diagnosing the CMEs' magnetic field using gyrosynchrotron radiation. We present magnetic field measurements of a CME associated with an X5-class flare by combining radio imaging spectroscopy data in microwaves (1--18 GHz) and meter-wave (20--88 M…

Observation of pseudogap in Cr_{1-x}Y_xN magnetic alloy and its impact on the Seebeck coefficient by ab-initio calculations
Luis Felipe Leon-Pinzon, Elisabeth Restrepo-Parra, Andres Manuel Garay-Tapia
https://arxiv.org/abs/2506.00687

Observation of pseudogap in Cr_{1-x}Y_xN magnetic alloy and its impact on the Seebeck coefficient by ab-initio calculations
Thermoelectric materials require high electronic conductivity and low thermal conductivity. CrN has been shown to have low phononic thermal conductivity, making it a potential candidate for thermoelectric applications. In addition, similarities have been observed between YN and ScN suggesting that the CrYN alloy may have interesting thermoelectric properties. As CrYN has not been studied in detail at the level of thermoelectric properties, the first study on CrYN alloy of Seebeck coefficient an…

Segre forms of singular metrics on vector bundles and Lelong numbers
Mats Andersson, Richard L\"ark\"ang
https://arxiv.org/abs/2506.15473 https:/…

Segre forms of singular metrics on vector bundles and Lelong numbers
Let $E\to X$ be a holomorphic vector bundle with a singular Griffiths negative Hermitian metric $h$ with analytic singularities. One can define, given a smooth reference metric $h_0$, a current $s(E,h,h_0)$ that is called the associated Segre form, which defines the expected Bott-Chern class and coincides with the usual Segre form of $h$ where it is smooth. We prove that $s(E,h,h_0)$ is the limit of the Segre forms of a sequence of smooth metrics if the metric is smooth outside the unbounded lo…

Josephson diode effect in nanowire-based Andreev molecules
Shang Zhu, Yiwen Ma, Jiangbo He, Xiaozhou Yang, Zhongmou Jia, Min Wei, Yiping Jiao, Jiezhong He, Enna Zhuo, Xuewei Cao, Bingbing Tong, Ziwei Dou, Peiling Li, Jie Shen, Xiaohui Song, Zhaozheng Lyu, Guangtong Liu, Dong Pan, Jianhua Zhao, Bo Lu, Li Lu, Fanming Qu
https://arxiv.org/abs…

Josephson diode effect in nanowire-based Andreev molecules
Superconducting systems exhibit non-reciprocal current transport under certain conditions of symmetry breaking, a phenomenon known as the superconducting diode effect. This effect allows for perfect rectification of supercurrent, and has received considerable research interest. We report the observation of the Josephson diode effect (JDE) in nanowire-based Andreev molecules, where the time-reversal and spatial-inversion symmetries of a Josephson junction (JJ) can be nonlocally broken by coheren…