Results 131 to 140 of about 30,815 (296)
Lasing zero modes are not always topological
Communications PhysicsThe convergence of non-Hermitian physics and topology has inspired new ideas and applications across various physical platforms such as optics, electronics and acoustics.
Mohammadmahdi Alizadeh +3 more
doaj +1 more source
Conley's spectral sequence via the sweeping algorithm
, 2015 In this article we consider a spectral sequence (E(r), d(r)) associated to a filtered Morse-Conley chain complex (C, Delta), where Delta is a connection matrix. The underlying motivation is to understand connection matrices under continuation.
de Rezende, KA +2 more
core +1 more source
Ion‐Reconfigurable “N”‐Shaped Antiambipolar Behavior in Organic Electrochemical Transistors
Advanced Materials, EarlyView.A unique N‐shaped negative differential transconductance (NDT) characteristics is demonstrated in single‐polymer organic electrochemical transistors through a sequential doping–redox–doping process driven by iodide ions. This redox‐driven mechanism enables low‐voltage, ion‐controlled reconfigurability and tunable current modulation, allowing seamless ...
Debdatta Panigrahi +11 more
wiley +1 more source
Spectral Representation for Matching and Recognition [PDF]
, 2013 In this thesis, we aim to use the spectral graph theory to develop a framework to solve the problems of computer vision. The graph spectral methods are concerned with using the eigenvalues and eigenvectors of the adjacency matrix or closely related ...
Haseeb, Muhammad
core
High Charge Carrier Mobility in Non‐Conjugated 3D Covalent Organic Frameworks
Advanced Materials, EarlyView.A non‐conjugated 3D COF constructed via boronate ester linkages from tetraphenylene and pyrene‐based monomers is reported, which exhibits a high charge carrier mobility of 14 ± 1 cm2 V−1 s−1. ABSTRACT π‐Conjugation, π–π stacking, and long‐range order play a central role in determining charge transport efficiency in organic materials.
Joaquín Almarza +11 more
wiley +1 more source
Universal Conductance Fluctuations in Quantum Anomalous Hall Insulators
Advanced Materials, EarlyView.Universal conductance fluctuations are observed in mesoscopic quantum anomalous Hall insulators. Two distinct fluctuation patterns are identified, arising from different interference processes of bulk and chiral edge states, respectively. These findings unveil rich quantum interference phenomena in quantum anomalous Hall insulators and provide insights
Peng Deng +11 more
wiley +1 more source
Topological Spectral Decompositions
This paper explores the deep connections between spectral theory and algebraic topology, focusing on the decomposition of operator spectra based on underlying topological invariants. In quantum condensed matter physics and mathematics, the structure of an operator's spectrum provides fundamental insights into the system's properties.
openaire +2 more sources
Advanced Materials, EarlyView.Residual magnetization induces pronounced mechanical anisotropy in ultra‐soft magnetorheological elastomers, shaping deformation and actuation even without external magnetic fields. This study introduces a computational‐experimental framework integrating magneto‐mechanical coupling into topology optimization for designing soft magnetic actuators with ...
Carlos Perez‐Garcia +3 more
wiley +1 more source
Winding-control mechanism of non-Hermitian systems
Physical Review ResearchNon-Hermitian quantum systems exhibit various interesting and interconnected spectral, topological, and boundary-sensitive features. By introducing conditional boundary conditions (CBCs) for non-Hermitian quantum systems, we explore a winding-control ...
Yongxu Fu, Yi Zhang
doaj +1 more source
Structure Theorem for Riemannian surfaces with arbitrary curvature [PDF]
, 2008 15 pages, 3 figures.-- MSC2000 codes: 53C20, 53C22, 58A99.-- ArXiv pre-print available at: http://arxiv.org/abs/0806.0090Previously presented as Poster at: X Encuentros de Análisis Real y Complejo (XEARCO'07, Palma de Mallorca, Spain, May 10-13, 2007 ...
Tourís, Eva +2 more
core