Results 211 to 220 of about 3,784,851 (224)
Some of the next articles are maybe not open access.
The renormalisation group and effective field theories
Synthese, 1995Much apprehension has been expressed by philosophers about the method of renormalisation in quantum field theory, as it apparently requires illegitimate procedure of infinite cancellation. This has lead to various speculations, in particular in Teller (1989). We examine Teller's discussion of perturbative renormalisation of quantum fields, and show why
Nick Huggett, Robert Weingard
openaire +1 more source
Group Theory and Crystal Field Theory
1961Publisher Summary The chapter describes crystal field theory that concerns with an attempt to calculate as much as possible about the behavior of solids on the basis of a known or assumed symmetry of the problem and with the simplifying assumption that the interaction between the ion or atom of interest and its nearest neighbors is electrostatic in ...
Charles M. Herzfeld, Paul H.E. Meijer
openaire +1 more source
Exotic Galileian group in field theory
Journal of Mathematical Sciences, 2006Using the properties of Seiberg-Witten map the author establishes an interpretation of the exotic Galileian group of families of non-relativistic field theories on a noncommutative plane. Also the description for the class of self-interaction theories is provided.
openaire +3 more sources
Condensates in group field theory
2023As a theory of quantum gravity, in group field theory (GFT) the usual spacetime dissolves microscopically into discretized building blocks. A major challenge is to understand how the familiar laws of physics based on continuous spacetime can emerge from these fundamental, non-spatio-temporal elements.
openaire +1 more source
Group Contraction in Quantum Field Theory
International Journal of Theoretical Physics, 2007zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire +3 more sources
quantum field theory as group algebra
Reports on Mathematical Physics, 1976Abstract A group theoretical approach to dynamical quantization in general, and quantum field theory in particular, is developed. This approach opens possibilities of new quantization schemes. Some of these schemes are discussed in detail. They offer certain advantages such as relaxation of the conventional principles of unitarity and causality on ...
openaire +1 more source
Bogoliubov group variables in relativistic field theory
Theoretical and Mathematical Physics, 1997zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Khrustalev, O. A., Chichikina, M. V.
openaire +2 more sources
Chern-Simons field theory and quantum groups
2008We study the Gauss constraint of the Chern-Simons theory in presence of sources. We solve this constraint in terms of a matrix-valued gauge connection. The associated holonomies define a representation of the braid group, which commutes with the action of a quantum group.
GUADAGNINI, ENORE +2 more
openaire +2 more sources
RENORMALIZATION GROUP METHODS IN CONSTRUCTIVE FIELD THEORIES
International Journal of Modern Physics B, 2000Mathematical construction of quantum field theory is reviewed with emphasis on the conceptual structure of the construction and on the role of rigorous renormalization group analysis without technical details. After explaining a rigorous formulation of a renormalization group method in a weak coupling region, a new approach in a strong coupling region
openaire +2 more sources