Results 21 to 30 of about 295,686 (314)

The Scalar, Vector and Tensor Fields in Theory of Elasticity and Plasticity [PDF]

open access: yesTransactions of the VŠB-Technical University of Ostrava, Mechanical Series, 2014
This article is devoted to an analysis of scalar, vector and tensor fields, which occur in the loaded and deformed bodies. The aim of this article is to clarify and simplify the creation of an understandable idea of some elementary concepts and ...
František FOJTÍK, Radim HALAMA
doaj   +1 more source

NONCOMMUTATIVE FIELD THEORIES AND (SUPER)STRING FIELD THEORIES [PDF]

open access: yesParticles and Fields, 2002
In this lecture notes we explain and discuss some ideas concerning noncommutative geometry in general, as well as noncommutative field theories and string field theories. We consider noncommutative quantum field theories emphasizing an issue of their renormalizability and the UV/IR mixing. Sen's conjectures on open string tachyon condensation and their
Aref'eva, I. Ya.   +4 more
openaire   +2 more sources

Towards a field theory of F-theory [PDF]

open access: yesClassical and Quantum Gravity, 1998
Latex, 21 pages.
Khviengia, N.   +3 more
openaire   +3 more sources

Quantization of algebraic invariants through Topological Quantum Field Theories [PDF]

open access: yes, 2023
In this paper we investigate the problem of constructing Topological Quantum Field Theories (TQFTs) to quantize algebraic invariants. We exhibit necessary conditions for quantizability based on Euler characteristics. In the case of surfaces, also provide
González-Prieto, Ángel   +2 more
core   +2 more sources

String theory or field theory? [PDF]

open access: yesPhysics-Uspekhi, 2002
The status of string theory is reviewed, and major recent developments - especially those in going beyond perturbation theory in the string theory and quantum field theory frameworks - are discussed. This analysis helps better understand the role and place of string theory in the modern picture of the physical world.
openaire   +2 more sources

Constraints on chiral operators in N=2 SCFTs [PDF]

open access: yes, 2014
: We study certain higher-spin chiral operators in (formula presented)(formula presented) superconformal field theories (SCFTs). In Lagrangian theories, or in theories related to Lagrangian theories by generalized Argyres-Seiberg-Gaiotto duality (“type A”
Matthew Buican   +5 more
core   +1 more source

FROM EUCLIDEAN FIELD THEORY TO QUANTUM FIELD THEORY [PDF]

open access: yesReviews in Mathematical Physics, 1999
In order to construct examples for interacting quantum field theory models, the methods of Euclidean field theory turned out to be powerful tools since they make use of the techniques of classical statistical mechanics. Starting from an appropriate set of Euclidean n-point functions (Schwinger distributions), a Wightman theory can be reconstructed by
openaire   +2 more sources

ON FIELD THEORIES OF LOOPS [PDF]

open access: yesModern Physics Letters A, 1995
We apply stochastic quantization method to real symmetric matrix models for the second quantization of nonorientable loops in both discretized and continuum levels. The stochastic process defined by the Langevin equation in loop space describes the time evolution of the nonorientable loops defined on nonorientable 2-D surfaces.
openaire   +3 more sources

Extremal effective field theories

open access: yesJournal of High Energy Physics, 2021
Effective field theories (EFT) parameterize the long-distance effects of short-distance dynamics whose details may or may not be known. Previous work showed that EFT coefficients must obey certain positivity constraints if causality and unitarity are ...
Simon Caron-Huot, Vincent Van Duong
doaj   +1 more source

Localization and Dualities in Three Dimensional Superconformal Field Theories [PDF]

open access: yes, 2012
In this thesis we apply the technique of localization to three-dimensional N=2 superconformal field theories. We consider both theories which are exactly superconformal, and those which are believed to flow to nontrivial superconformal fixed points, for
Willett, Brian M.
core   +1 more source

Home - About - Disclaimer - Privacy