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pro vyhledávání: '"Dittrich, Walter"'
Autor:
Dittrich, Walter
This article is meant to formulate the equations of motion of an electron in a cavity magnetron using action-angle variables. This means following the electron's path on its way from a cylindrical cathode moving toward a co-axial cylindrical anode in
Externí odkaz:
http://arxiv.org/abs/1604.05961
Autor:
Dittrich, Walter
A comparative study is undertaken that brings to light the two different methods of how to treat the many-body problem in quantum field theory. The two main researchers who published the first versions of how to quantize a many-body assembly were P.
Externí odkaz:
http://arxiv.org/abs/1501.07384
Autor:
Dittrich, Walter
We discuss in this article the usefulness of the effective Lagrangians (L_eff) of QED and QCD within the one-loop approximation. Instead of calculating L_eff via complicated computations with Schwinger's proper-time technique or Feynman graphs, we pr
Externí odkaz:
http://arxiv.org/abs/1501.07147
Autor:
Dittrich, Walter
We review in this article the role which the work of Pauli and Weisskopf played in formulating a quantum field theory of spinless particles. To make our computations as transparent as possible, we offer a physicist's derivation of the Klein-Gordon-Fo
Externí odkaz:
http://arxiv.org/abs/1501.07144
Autor:
Dittrich, Walter
We present some comments on Schwinger's calculation of electron-positron production in a prescribed constant electric field. The range of validity of 2 Im \mathcal{L}^(1)(E) is discussed thoroughly and limiting cases are provided.
Externí odkaz:
http://arxiv.org/abs/1402.1638