Results 31 to 40 of about 7,348,255 (319)
Reusable Biosensor Based on Differential Phase Detection at the Point of Darkness
Advanced Photonics Research, 2021 A differential phase sensor based on a narrowband perfect absorber uses the phase singularity at the point of darkness (100% absorption). Herein, a structure with a top SiO2 layer is proposed that is index matched with a glass flow cell that shows the ...
Shilpa Samdani +4 more
doaj +1 more source
Complex charge density waves at Van Hove singularity on hexagonal lattices: Haldane-model phase diagram and potential realization in the kagome metals AV3Sb5 ( A =K, Rb, Cs) [PDF]
Physical review B, 2021 We analyze how the real and imaginary charge density waves interplay at the Van Hove singularity on the hexagonal lattices. A phenomenological Ginzburg-Landau analysis indicates the formation of complex orders at all three momenta under a total phase ...
Yu-Ping Lin, R. Nandkishore
semanticscholar +1 more source
Robust three-dimensional best-path phase-unwrapping algorithm that avoids singularity loops [PDF]
, 2009 In this paper we propose a novel hybrid three-dimensional phase-unwrapping algorithm, which we refer to here as the three-dimensional best-path avoiding singularity loops (3DBPASL) algorithm.
Burton, David +8 more
core +2 more sources
On phases of generic toric singularities [PDF]
Journal of High Energy Physics, 2007 We systematically study the phases of generic toric singularities, using methods initiated in hep-th/0612046. These correspond to Gauged Linear Sigma Models with arbitrary charges. We show that complete information about generic $U(1)^r$ GLSMs can be obtained by studying the GLSM Lagrangian, appropriately modified in the different phases of the theory.
Sarkar, Tapobrata, Singh, Ajay
openaire +2 more sources
Rotor Localization and Phase Mapping of Cardiac Excitation Waves Using Deep Neural Networks
Frontiers in Physiology, 2021 The analysis of electrical impulse phenomena in cardiac muscle tissue is important for the diagnosis of heart rhythm disorders and other cardiac pathophysiology. Cardiac mapping techniques acquire local temporal measurements and combine them to visualize
Jan Lebert +4 more
doaj +1 more source
Spiral phase plate with multiple singularity centers
Компьютерная оптика, 2020 We investigate a multispiral phase plate (MSPP) with multiple centers of phase singularity arbitrarily located in the MSPP plane. Equations to describe the topological charge of an optical vortex in the initial plane immediately behind the MSPP and ...
V.V. Kotlyar +3 more
doaj +1 more source
Singularities and gauge theory phases [PDF]
Advances in Theoretical and Mathematical Physics, 2015 Motivated by M-theory compactification on elliptic Calabi-Yau threefolds, we present a correspondence between networks of small resolutions for singular elliptic fibrations and Coulomb branches of five-dimensional N=1 gauge theories. While resolutions correspond to subchambers of the Coulomb branch, partial resolutions correspond to higher codimension ...
Esole, Mboyo +2 more
openaire +2 more sources
Journal of Arrhythmia, 2021 Background Atrial fibrillation (AF) is characterized by the repetitive regeneration of unstable rotational events, the pivot of which are known as phase singularities (PSs).
Madeline Schopp +9 more
doaj +1 more source
Acoustic pressure, scalar field, and phase singularity
, 2023 We propose that the acoustic pressure could be treated as a scalar field. We investigate the properties of the acoustic pressure field which give rise to the phase singularity.
Miftachul Hadi
core +1 more source
Sharp focusing of a light field with polarization and phase singularities of an arbitrary order [PDF]
Компьютерная оптика, 2019 Using the Richards-Wolf formalism, we obtain general expressions for all components of the electric and magnetic strength vectors near the sharp focus of an optical vortex with the topological charge m and nth-order azimuthal polarization.
Victor Kotlyar +2 more
doaj +1 more source