Читать книгу Quantum Mechanics, Volume 3 - Claude Cohen-Tannoudji - Страница 118
        
        
        
        1-b. Energy average value      
Оглавление            Since state (1) is normalized, the average energy in this state is given by:
      (9)
      Let us evaluate successively the contributions of the three terms of (3), to obtain an expression which we will eventually vary.