What is Bloch theorem and equation. Can you describe the parameters in the bloch equation and what they represent? how can we can introduce the plane-wave basis set by using this representation of the wave function as a starting point

What is Bloch theorem and equation. Can you describe the parameters in the bloch equation and what they represent? how can we can introduce the plane-wave basis set by using this representation of the wave function as a starting point

University Physics Volume 3

17th Edition

ISBN:9781938168185

Author:William Moebs, Jeff Sanny

Publisher:William Moebs, Jeff Sanny

Chapter7: Quantum Mechanics

Section: Chapter Questions

Problem 1CQ: What is the physical unit of a wave function, (x,t)? What is the physical unit of the square of this...

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Concept explainers

Connection formulae for WKB approximation

In quantum mechanics, Schrödinger’s equation for certain systems with varying parameters cannot be solved directly. In such a case, an approximation method is used to obtain the approximate solution. WKB method is a special technique used to obtain the approximate solution for Schrödinger’s time-independent equation. In general, the WKB method is used to solve linear differential equations with varying coefficients. This method is called semiclassical approximation in quantum mechanics.

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