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Principles of Quantum Mechanics by Dr Singh Tyagi

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Chapter 19

Theory of Measurement in Quantum Mechanics

To be without some of the things you want is an indispensable part of happiness.

—Bertrand Russell

19.1  INTRODUCTION

In earlier Chapters, we have gone through the development of quantum mechanics and through the applications of Schrodinger equation to a number of physical systems. The information about microscopic system, obtained by solving Schrodinger equation, is generally in the form of probability and can be verified experimentally only in a statistical way. It simply means we shall have to do identical experiments on a large number of identically prepared systems to verify the statistical results of Schrodinger equation. This is the famous statistical (or ensemble) interpretation of ...

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