Naturalness, Wilsonian renormalization, and “fundamental parameters” in quantum field theory

نویسندگان
چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Renormalization and quantum field theory

The aim of this paper is to describe how to use regularization and renormalization to construct a perturbative quantum field theory from a Lagrangian. We first define renormalizations and Feynman measures, and show that although there need not exist a canonical Feynman measure, there is a canonical orbit of Feynman measures under renormalization. We then construct a perturbative quantum field t...

متن کامل

Renormalization and dressing in quantum field theory

We illustrate the mass and charge renormalization procedures in quantum field theory using, as an example, a simple model of interacting electrons and photons. It is shown how addition of infinite renormalization counterterms to the Hamiltonian helps to obtain finite and accurate results for the S-matrix. In order to remove the ultraviolet divergences from the Hamiltonian, we apply the Greenber...

متن کامل

Field Theory and Renormalization Group for the Magnetocaloric Effect Quantum Fields and Fundamental Forces (MSc)

In this thesis, we will first review the physics of the magnetocaloric effect (MCE), and the giant magnetocaloric effect (GMCE), with a brief review of the statistical mechanics techniques we will need throughout. Then we will review the state of our understanding of the GMCE through the use of compressible Ising models, examining the central theoretical models (Domb [1], Bean-Rodbell [2], Bake...

متن کامل

Regularized Quantum Master Equation in the Wilsonian Renormalization Group

Using the Pauli-Villars regularization, we make a perturbative analysis of the quantum master equation (QME), Σ = 0, for the Wilsonian effective action. It is found that the QME for the UV action determines whether exact gauge symmetry is realized along the renormalization group (RG) flow. The basic task of solving the QME can be reduced to compute the Troost-van Niuwenhuizen-Van Proyen jacobia...

متن کامل

Gravitational renormalization of quantum field theory

We propose to include gravity in quantum field theory non-perturbatively by modifying the propagators so that each virtual particle in a Feynman graph move in the space-time determined by the momenta of the other particles in the same graph. We then obtain a modified Feynman propagator for the massless neutral scalar field which shows a suppression at high momentum strong enough to entail finit...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics

سال: 2019

ISSN: 1355-2198

DOI: 10.1016/j.shpsb.2018.12.003