Quantum Theory: Concepts and Methods

N. David Mermin

Robert K. Clifton

N.N. Leonov

The new physics concepts of the material world structure - quantum theory and theory of relativity - are compared with the concepts of the theory of nonlinear oscillations operating in classical and Newton’s methods.

N. Marinescu, Marian Apostol

Abstract A Klein-Gordon-type equation is derived for the wave propagation in an ideal, uniform waveguide, and its quantum-mechanical interpretation is given. The "cross-section" concept is introduced for a waveguide and the power transmission factor is obtained by using standard methods of quantum mechanics. The spinorial formalism is also employed for deriving the equivalent Dirac-type equation, and the perturbation theory is applied for computing the frequency shifts. The general applicability of the quantum-mechanical concepts to the waveguides theory is discussed

W. F. G. Swann

Florian A. Scheck