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Learning Fermionic Correlations by Evolving with Random Translationally Invariant Hamiltonians.
Phys Rev Lett
December 2024
Dahlem Center for Complex Quantum Systems, Freie Universität Berlin, 14195 Berlin, Germany.
Schemes of classical shadows have been developed to facilitate the readout of digital quantum devices, but similar tools for analog quantum simulators are scarce and experimentally impractical. In this Letter, we provide a measurement scheme for fermionic quantum devices that estimates second and fourth order correlation functions by means of free fermionic, translationally invariant evolutions-or quenches-and measurements in the mode occupation number basis. We precisely characterize what correlation functions can be recovered and equip the estimates with rigorous bounds on sample complexities, a particularly important feature in light of the difficulty of getting good statistics in reasonable experimental platforms, with measurements being slow.
View Article and Find Full Text PDFShadow Effect-Triggered Photosensitive Gate of Organic Photoelectrochemical Transistor for Enhanced Biodetection.
Anal Chem
December 2024
School of Materials, Shenzhen Campus of Sun Yat-sen University, Shenzhen, Guangdong 518107, P. R. China.
The integration of a photosensitive gate into an organic electrochemical transistor has currently emerged as a promising route for biological sensing. However, the modification of the photosensitive gate always involves complex processes, and the degradation of sensitivity of the functional materials under illumination will significantly decrease the stability of the devices. Herein, we designed an organic photoelectrochemical transistor (OPECT) biosensor employing horseradish peroxidase (HRP)@glucose oxidase (GOx)/Pt/n-Si as the photosensitive gate based on the "shadow effect".
View Article and Find Full Text PDFDesign and Prototyping of a Novel Triple Lumen Photo-Angioplasty Device: Lumi-Solve-T.
Cardiovasc Eng Technol
December 2024
Eastern Health Clinical School, Monash University, Melbourne, Australia.
Purpose: A triple lumen iteration of the novel photo-angioplasty drug eluting balloon catheter (DEBc) Lumi-Solve may be compromised by guidewire shadow (GWS)-mediated attenuation of balloon surface drug activation. The current study aimed to design and evaluate a novel triple lumen prototype, designated Lumi-Solve-T, to circumvent these issues.
Methods: Effects of guidewire shadowing (GWS) on vascular smooth muscle cell (VSMC) proliferation was evaluated using the MTT assay.
From shadows to light.
JAAPA
January 2025
Laura A. Katers practices inpatient pain management and addiction medicine at the University of Washington Medical Center in Seattle, Wash., and teaches in the MEDEX Northwest PA program. You can follow her interest in art and medicine on Instagram at The author has disclosed no potential conflicts of interest, financial or otherwise.
A Large-Scale Building Unsupervised Extraction Method Leveraging Airborne LiDAR Point Clouds and Remote Sensing Images Based on a Dual P-Snake Model.
Sensors (Basel)
November 2024
College of Computer Science and Technology, Harbin Engineering University, Harbin 150801, China.
Automatic large-scale building extraction from the LiDAR point clouds and remote sensing images is a growing focus in the fields of the sensor applications and remote sensing. However, this building extraction task remains highly challenging due to the complexity of building sizes, shapes, and surrounding environments. In addition, the discreteness, sparsity, and irregular distribution of point clouds, lighting, and shadows, as well as occlusions of the images, also seriously affect the accuracy of building extraction.
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