| 11. | This relationship is true for both the classical and quantum correlation functions.
|
| 12. | The second quantity is known as the correlation function.
|
| 13. | This means that the correlation functions are all computable from as Gaussian averages:
|
| 14. | This equation is an identity inside any correlation function away from other insertions.
|
| 15. | If they are not, then more complicated correlation functions can be defined.
|
| 16. | Under correlation functions, even those that do not fit the mathematical definition.
|
| 17. | The correlation functions can be described by Integrable system.
|
| 18. | In one dimensional case correlation functions also were evaluated.
|
| 19. | The value of the correlation function then dictates the values of the condensates.
|
| 20. | This is a kind of spectral decomposition of the auto-correlation function.
|
