Kavli Affiliate: Katja C. Nowack | Summary:The creation of topologically non-trivial matter across electronic, mechanical, cold-atom, and photonic platforms is advancing rapidly, yet understanding the breakdown of topological protection remains a major challenge. In this work, we use magnetic imaging combined with global electrical transport measurements to visualize the current-induced breakdown of the quantum anomalous […]

Kavli Affiliate: Grace Xing | Summary:We report a polarization-induced 2D electron gas (2DEG) at an epitaxial AlBN/GaN heterojunction grown on a SiC substrate. Using this 2DEG in a long conducting channel, we realize ultra-thin barrier AlBN/GaN high electron mobility transistors that exhibit current densities of more than 0.25 A/mm, clean current saturation, a low pinch-off […]

Kavli Affiliate: Farhan Rana | Summary:Two single crystal phases of tantalum nitride were stabilized on c-plane sapphire using molecular beam epitaxy. The phases were identified to be $δ$-TaN with a rocksalt cubic structure and $γ$-Ta$_2$N with a hexagonal structure. Atomic force microscopy scans revealed smooth surfaces for both the films with root mean square roughnesses […]

Kavli Affiliate: Dan Luo | First 5 Authors: Manisha Mukherjee, Sungchul Kim, Xiang Chen, Dan Luo, Tong Yu | Summary: The Adobe Experience Platform AI Assistant is a conversational tool that enables organizations to interact seamlessly with proprietary enterprise data through a chatbot. However, due to access restrictions, Large Language Models (LLMs) cannot retrieve these […]

Kavli Affiliate: Debanjan Chowdhury | Summary:We revisit the measurement-induced phase transition (MPT) in Clifford circuits, which are both classically simulable and exhibit critical behavior widely believed to be distinct from classical percolation theory, using ZX-calculus. We analyze the MPT in a dynamical model composed of CNOT, SWAP, identity gates, and Bell-pair measurements, respectively, arranged randomly […]

Kavli Affiliate: Grace Xing | First 5 Authors: Yu-Hsin Chen, Jimy Encomendero, Huili Grace Xing, Debdeep Jena, | Summary: We report the observation of Shubnikov-de Haas (SdH) oscillations in coherently strained, low-dislocation AlN/GaN/AlN quantum wells (QWs), including both undoped and $delta$-doped structures. SdH measurements reveal a single subband occupation in the undoped GaN QW and […]

Kavli Affiliate: Grace Xing | Summary:We report the observation of Shubnikov-de Haas (SdH) oscillations in coherently strained, low-dislocation AlN/GaN/AlN quantum wells (QWs), including both undoped and $δ$-doped structures. SdH measurements reveal a single subband occupation in the undoped GaN QW and two subband occupation in the $δ$-doped GaN QW. More importantly, SdH oscillations enable direct […]

Kavli Affiliate: Zhiting Tian | First 5 Authors: Corrado Böhm, Corrado Böhm, , , | Summary: This is a plain English translation of [Böh68], originally in Italian, by Chun Tian. All footnotes (and citations only found in footnotes, of course) are added by the translator. | Search Query: arXiv Query: search_query=au:Zhiting OR all:Tian&id_list=&start=0&max_results=3 Read More

Kavli Affiliate: Chris Xu | First 5 Authors: Jens Hainmueller, Jens Hainmueller, , , | Summary: Simonsohn (2024a) and Simonsohn (2024b) critique Hainmueller, Mummolo and Xu (2019, HMX), arguing that failing to model nonlinear relationships between the treatment and moderator leads to biased marginal effect estimates and uncontrolled Type-I error rates. While these critiques highlight […]

Kavli Affiliate: Jeffrey Moses | Summary:With the stability of integrated photonics at network nodes and the advantages of photons as flying qubits, photonic quantum information processing (PQIP) makes quantum networks increasingly scalable. However, scaling up PQIP requires the preparation of many identical single photons which is limited by the spectral distinguishability of integrated single-photon sources […]