Results 41 to 50 of about 275,044 (284)

Topology and the Dirac Operator Spectrum in Finite-Volume Gauge Theories [PDF]

, 1999
The interplay between between gauge-field winding numbers, theta-vacua, and the Dirac operator spectrum in finite-volume gauge theories is reconsidered.
't Hooft, Akemann, Akemann, Akemann, Akemann, Berbenni-Bitsch, Berbenni-Bitsch, Brower, Crewther, Damgaard, Damgaard, Damgaard, Damgaard, Damgaard, Gasser, Halasz, Jackson, Leutwyler, Lüscher, Nishigaki, P.H. Damgaard, Shuryak, Smilga, Smit, Veneziano, Verbaarschot, Verbaarschot, Verbaarschot, Verbaarschot, Verbaarschot, Verbaarschot, Weingarten, Witten, Şener   +33 more
core   +2 more sources

Factorising the 3D topologically twisted index [PDF]

Journal of High Energy Physics, 2017
Exploramos la integración de rutas, sobre el contorno de configuraciones de campos hermíticas (no auxiliares), de $$ \mathcal{N}=2 $$ Teoría de la materia de Chern-Simons (TTCSM) topológicamente retorcida en $$ {\mathbb{S}}_2 $$ veces por segmento.
openaire   +4 more sources

Computing SS Index of Certain Dendrimers

Journal of Mathematics, 2021
The numerical descriptor gathers the data from the molecular graphs and helps to know the characteristics of the chemical structure known as topological index.
Weidong Zhao, M.C. Shanmukha, A. Usha, Mohammad Reza Farahani, K.C. Shilpa   +4 more
doaj   +1 more source

Topological Indices of H-Naphtalenic Nanosheet

Open Chemistry, 2018
In chemical graph theory, a single numeric number related to a chemical structure is called a topological descriptor or topological index of a graph.
Idrees Nazeran, Jawwad Saif Muhammad, Sadiq Afshan, Rauf Asia, Hussain Fida   +4 more
doaj   +1 more source

On the Computation of Some Topological Descriptors to Find Closed Formulas for Certain Chemical Graphs

Journal of Chemistry, 2021
In this research paper, we will compute the topological indices (degree based) such as the ordinary generalized geometric-arithmetic (OGA) index, first and second Gourava indices, first and second hyper-Gourava indices, general Randic´ index RγG,for γ=±1,
Muhammad Haroon Aftab, Muhammad Rafaqat, M. Hussain, Tariq Zia   +3 more
doaj   +1 more source

Invariance of topological indices under Hilbert space truncation

, 2017
We show that the topological index of a wavefunction, computed in the space of twisted boundary phases, is preserved under Hilbert space truncation, provided the truncated state remains normalizable.
Arovas, Daniel P., Balatsky, Alexander V., Huang, Zhoushen, Zhu, Jian-Xin, Zhu, W.   +4 more
core   +1 more source

Topological Photonic Quasicrystals: Fractal Topological Spectrum and Protected Transport

, 2016
We show that it is possible to have a topological phase in two-dimensional quasicrystals without any magnetic field applied, but instead introducing an artificial gauge field via dynamic modulation.
Bandres, Miguel A., Rechtsman, Mikael C., Segev, Mordechai   +2 more
core   +2 more sources

Solitary Waves in Massive Nonlinear S^N-Sigma Models [PDF]

, 2010
The solitary waves of massive (1+1)-dimensional nonlinear S^N-sigma models are unveiled. It is shown that the solitary waves in these systems are in one-to-one correspondence with the separatrix trajectories in the repulsive N-dimensional Neumann ...
Izquierdo, A. Alonso, León, M. Á. González, Mayado, M. de la Torre   +2 more
core   +5 more sources

A scattering matrix formulation of the topological index of interacting fermions in one-dimensional superconductors [PDF]

, 2013
We construct a scattering matrix formulation for the topological classification of one-dimensional superconductors with effective time reversal symmetry in the presence of interactions.
Brouwer, Piet W., Meidan, Dganit, Romito, Alessandro   +2 more
core   +3 more sources

Degree-Based Graph Entropy in Structure–Property Modeling

Entropy, 2023
Graph entropy plays an essential role in interpreting the structural information and complexity measure of a network. Let G be a graph of order n. Suppose dG(vi) is degree of the vertex vi for each i=1,2,…,n.
Sourav Mondal, Kinkar Chandra Das
doaj   +1 more source