Persistent Mayer Dirac.

J Phys Complex

Department of Mathematics, Michigan State University, East Lansing, MI 48824, United States of America.

Published: December 2024

AI Article Synopsis

  • Topological data analysis (TDA) has advanced the understanding of fundamental operators like the Dirac operator, utilizing chain complexes to analyze topological signals and molecular structures.
  • This research introduces Mayer Dirac operators that link Mayer Laplacian operators, along with weighted versions to enhance their practical use in various fields, including biology and chemistry.
  • The study also explores the generalization of Laplacian operators and emphasizes the significant potential of persistent Mayer Dirac operators in data science applications.

Article Abstract

Topological data analysis (TDA) has made significant progress in developing a new class of fundamental operators known as the Dirac operator, particularly in topological signals and molecular representations. However, the current approaches being used are based on the classical case of chain complexes. The present study establishes Mayer Dirac operators based on -chain complexes. These operators interconnect an alternating sequence of Mayer Laplacian operators, providing a generalization of the classical result . Furthermore, the research presents an explicit formulation of the Laplacian for -chain complexes induced by vertex sequences on a finite set. Weighted versions of Mayer Laplacian and Dirac operators are introduced to expand the scope and improve applicability, showcasing their effectiveness in capturing physical attributes in various practical scenarios. The study presents a generalized version for factorizing Laplacian operators as an operator's product and its 'adjoint'. Additionally, the proposed persistent Mayer Dirac operators and extensions are applied to biological and chemical domains, particularly in the analysis of molecular structures. The study also highlights the potential applications of persistent Mayer Dirac operators in data science.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11488505PMC
http://dx.doi.org/10.1088/2632-072X/ad83a5DOI Listing

Publication Analysis

Top Keywords

mayer dirac
16
dirac operators
16
persistent mayer
12
operators
8
-chain complexes
8
mayer laplacian
8
laplacian operators
8
dirac
6
mayer
5
dirac topological
4

Similar Publications

Persistent Mayer Dirac.

J Phys Complex

December 2024

Department of Mathematics, Michigan State University, East Lansing, MI 48824, United States of America.

Article Synopsis
  • Topological data analysis (TDA) has advanced the understanding of fundamental operators like the Dirac operator, utilizing chain complexes to analyze topological signals and molecular structures.
  • This research introduces Mayer Dirac operators that link Mayer Laplacian operators, along with weighted versions to enhance their practical use in various fields, including biology and chemistry.
  • The study also explores the generalization of Laplacian operators and emphasizes the significant potential of persistent Mayer Dirac operators in data science applications.
View Article and Find Full Text PDF

Landau-phonon polaritons in Dirac heterostructures.

Sci Adv

September 2024

Department of Physics and Astronomy, Stony Brook University, Stony Brook, NY 11794, USA.

Article Synopsis
  • Polaritons are quasiparticles formed from light and matter that influence how quantum materials respond optically, making them useful for technologies like communication and sensing at the nanoscale.
  • The study focuses on Landau-phonon polaritons (LPPs) found in magnetized, charge-neutral graphene that is encapsulated in a material called hexagonal boron nitride (hBN), revealing new interactions between different particle modes.
  • Using a technique called infrared magneto-nanoscopy, researchers discovered that they can completely stop the movement of LPPs at specific magnetic fields, which challenges traditional optical rules and provides insights into critical phenomena related to electrons in the material.
View Article and Find Full Text PDF

Caddisflies (Trichoptera) are among the most diverse groups of freshwater animals with more than 16 000 described species. They play a fundamental role in freshwater ecology and environmental engineering in streams, rivers and lakes. Because of this, they are frequently used as indicator organisms in biomonitoring programmes.

View Article and Find Full Text PDF
Article Synopsis
  • The paper discusses how the band inversion in 3D topological materials connects to the parity anomaly seen in 2D massless Dirac fermions.
  • It presents findings from experiments on the topological insulator (Hg,Mn)Te, highlighting a specific behavior in the quantized Hall resistance that ties back to spectral asymmetry.
  • The observed phenomenon may occur in other topological insulators where a single Dirac surface state governs transport.
View Article and Find Full Text PDF

We explore the substrate-dependent charge carrier dynamics of large area graphene films using contact-free non-invasive terahertz spectroscopy. The graphene samples are deposited on seven distinct substrates relevant to semiconductor technologies and flexible/photodetection devices. Using a Drude model for Dirac fermions in graphene and a fitting method based on statistical signal analysis, we extract transport properties such as the charge carrier density and carrier mobility.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!