Results 71 to 80 of about 491,926 (211)
Thermodynamics of Ferromagnetic Spin Chains in a Magnetic Field: Impact of the Spin-Wave Interaction [PDF]
, 2013 The thermodynamic properties of ferromagnetic spin chains have been the subject of many publications. Still, the problem of how the spin-wave interaction manifest itself in these low-temperature series has been neglected.
Hofmann, Christoph P.
core +1 more source
Application of Graph Theory in Electrical Network
, 2016 : Graph theory is helpful in various practical problems solving in circuit or network analysis and data structure. It leads to graph practically not possible to analyze without the aid of computer.
Devdatta Deo
semanticscholar +1 more source
Jixie chuandong, 2008 Through analysis of the graph theory model,the conditions that the EGTs’ graph theory model must be met is summarized.On the basis of graph theory model presented in literature[1],a concept of module entity and basic loop in graph theory model is ...
史晓影, 陈良钰, 薛隆泉
doaj
Analytic evaluation of Feynman graph integrals [PDF]
, 2002 We review the main steps of the differential equation approach to the analytic evaluation of Feynman graphs, showing at the same time its application to the 3-loop sunrise graph in a particular kinematical configuration.Comment: 5 pages, 1 figure, uses ...
Argeri +15 more
core +2 more sources
Wilson loop form factors: a new duality
Journal of High Energy Physics, 2018 We find a new duality for form factors of lightlike Wilson loops in planar N $$ \mathcal{N} $$ = 4 super-Yang-Mills theory. The duality maps a form factor involving an n-sided lightlike polygonal super-Wilson loop together with m external on-shell states,
Dmitry Chicherin +3 more
doaj +1 more source
An operator representation for Matsubara sums
, 2003 In the context of the imaginary-time formalism for a scalar thermal field theory, it is shown that the result of performing the sums over Matsubara frequencies associated with loop Feynman diagrams can be written, for some classes of diagrams, in terms ...
A. Niégawa +30 more
core +1 more source
Precise atom-to-atom mapping for organic reactions via human-in-the-loop machine learning
Nature CommunicationsAtom-to-atom mapping (AAM) is a task of identifying the position of each atom in the molecules before and after a chemical reaction, which is important for understanding the reaction mechanism.
Shuan Chen +3 more
semanticscholar +1 more source
Complexity, 2022 This paper proposes an adaptive formation tracking control algorithm optimized by Q-learning scheme for multiple mobile robots. In order to handle the model uncertainties and external disturbances, a desired linear extended state observer is designed to ...
Chen Zhang +4 more
doaj +1 more source
Journal of High Energy Physics, 2021 We propose a new example of the AdS/CFT correspondence between the system of multiple giant gravitons in AdS 5 × S 5 and the operators with O(N c ) dimensions in N $$ \mathcal{N} $$ = 4 super Yang-Mills.
Ryo Suzuki
doaj +1 more source
Representation theory of C-algebras for a higher order class of spheres and tori
, 2007 We construct C-algebras for a class of surfaces that are inverse images of certain polynomials of arbitrary degree. By using the directed graph associated to a matrix, the representation theory can be understood in terms of ``loop'' and ``string ...
Joakim Arnlind, Robinson C.
core +1 more source