Tootfinder

On The Road - To Xi’An 🪭
在路上 - 去西安 🪭
📷 Minolta Hi-Matic AF
🎞️Kentmere Pan 200
#filmphotography #Photography #blackandwhite

Quantum confinement effect in Sb thin films
Anuradha Wijesinghe, Yongxi Ou, Anjali Rathore, Chandima Edirisinghe, Pradip Adhikari, An-Hsi Chen, Dustin Gilbert, Anthony Richardella, Nitin Samarth, Joon Sue Lee
https://arxiv.org/abs/2507.23014

Quantum confinement effect in Sb thin films
Antimony (Sb), an element with strong spin-orbit coupling, is predicted to undergo a topological phase transition from a topological semimetal to a topological insulator as its dimensionality approaches the two-dimensional limit, driven by the quantum confinement effect. In this study, we investigate this transition in Sb thin films grown by molecular beam epitaxy, employing electrical transport measurements and angle-resolved photoemission spectroscopy (ARPES). Electrical transport measurement…

Quantum anomalous Hall effects and Hall crystals at fractional filling of helical trilayer graphene
Sen Niu, Jason Alicea, D. N. Sheng, Yang Peng
https://arxiv.org/abs/2505.24146 …

Quantum anomalous Hall effects and Hall crystals at fractional filling of helical trilayer graphene
Helical trilayer graphene realizes a versatile moiré system in which anomalous Hall effects have been recently observed at integer and fractional fillings. Focusing on helical trilayers near the magic angle and under a substrate potential, we demonstrate that an isolated higher Chern band with Chern number $|C_{band}|=2$ emerges, enabling the exploration of many-body states beyond the conventional Landau level paradigm. We use exact diagonalization to predict a rich phase diagram of …

Democratic lawmakers in Congress are furious
after the Trump administration announced plans to
💥limit classified information that is typically shared with both houses of the legislature -- following a leak regarding the U.S.’s recent military strikes on Iran.
After President Donald Trump and members of his cabinet claimed his ordered attacks on three sites in Iran last weekend “obliterated” the country’s nuclear capabilities,
a leaked intelligence document disputed tha…

White House Plans to Limit Intel Sharing With Congress Over Leak Showing Iran’s Nuclear Capabilities Weren’t “Obliterated”
“This isn’t about national security — it’s about Trump’s insecurity,” Sen. Chuck Schumer said.

AeroLite-MDNet: Lightweight Multi-task Deviation Detection Network for UAV Landing
Haiping Yang, Huaxing Liu, Wei Wu, Zuohui Chen, Ning Wu
https://arxiv.org/abs/2506.21635

AeroLite-MDNet: Lightweight Multi-task Deviation Detection Network for UAV Landing
Unmanned aerial vehicles (UAVs) are increasingly employed in diverse applications such as land surveying, material transport, and environmental monitoring. Following missions like data collection or inspection, UAVs must land safely at docking stations for storage or recharging, which is an essential requirement for ensuring operational continuity. However, accurate landing remains challenging due to factors like GPS signal interference. To address this issue, we propose a deviation warning sys…

Scalable Etch-Free Transfer of Low-Dimensional Materials from Metal Films to Diverse Substrates
Kentaro Yumigeta (Department of Materials Science & Engineering, University of Arizona, Tucson, Arizona, USA), Muhammed Yusufoglu (Department of Materials Science & Engineering, University of Arizona, Tucson, Arizona, USA), Mamun Sarker (Department of Chemistry, University of Nebraska-Lincoln, Lincoln, Nebraska, USA), Rishi Raj (Department of Chemical Engineering and Materials Scienc…

Scalable Etch-Free Transfer of Low-Dimensional Materials from Metal Films to Diverse Substrates
Low-dimensional materials hold great promises for exploring emergent physical phenomena, nanoelectronics, and quantum technologies. Their synthesis often depends on catalytic metal films, from which the synthesized materials must be transferred to insulating substrates to enable device functionality and minimize interfacial interactions during quantum investigations. Conventional transfer methods, such as chemical etching or electrochemical delamination, degrade material quality, limit scalabil…

Global Water Supplies Threatened by Overmining of Aquifers: New Study — @…
https://www.propublica.org/article/water-aquifers…

Infinite BV, large $L^\infty$ solutions of conservation laws are H\"older-stable in $L^2$ in the class of front tracking limits
Geng Chen (University of Kansas), Cooper Faile (The University of Texas at Austin), Sam G. Krupa (\'Ecole normale sup\'erieure)
https://arxiv.org/abs/2507.23645…

Infinite BV, large $L^\infty$ solutions of conservation laws are Hölder-stable in $L^2$ in the class of front tracking limits
We consider hyperbolic systems of conservation laws in one spatial dimension. For any limit of front tracking solutions $v$, and for a general weak solution $u\in L^\infty$ with no BV assumption, we prove the following Hölder-type stability estimate in $L^2$: $$||u(\cdot,τ)-v(\cdot,τ)||_{L^2} \leq K \sqrt{||u( \cdot,0)-v( \cdot,0)||_{L^2}}$$ for all $τ$ without smallness and for a universal constant $K$. Our result holds for all limits of front tr…

Just finished "Concrete Rose" by Angie Thomas (I haven't yet read "The Hate U Give" but that's now high on my list of things to find). It's excellent, and in particular, an excellent treatise on positive masculinity in fiction form. It's not a super easy book to read emotionally, but is excellently written and deeply immersive. I don't have the perspective to know how it might land among teens like those it portrays, but I have a feeling it's true enough to life, and it held a lot of great wisdom for me.
CW for the book include murder, hard drugs, and parental abandonment.
I caught myself in a racist/classist habit of thought while reading that others night appreciate hearing about: early on I was mentally comparing it to "All my Rage" by Sabaa Tahir and wondering if/when we'd see the human cost of the drug dealing to the junkies, thinking that it would weaken the book not to include that angle. Why is that racist/classist? Because I'm always expecting books with hard drug dealers in them to show the ugly side of their business since it's been drilled into me that they're evil for the harm they cause, yet I never expect the same of characters who are bankers, financial analysts, health insurance claims adjudicators, police officers, etc. (Okay, maybe I do now look for that in police narratives). The point is, our society includes many people who as part of their jobs directly immiserate others, so why and I only concerned about that misery being brought up when it's drug dealers?
#AmReading

No ceasefire, possible land swaps, vague security guarantees: Everything we know following Trump’s meeting with Putin: https://benborges.xyz/2025/08/16/no-ceasefire-possible-land-swaps.html