Reminder about quantum mechanics principles

Qirantirm mechanics are based on the three following postulates  

1) Everything there is to know about a system of n particles boils down to a function (xi, yi, Zi, t), of the coordinates Xi, yi, Zi of each particle and of time t this function is a mathematical tool that makes it possible to calculate dynamic quantities such as a system s location, energy or moment. 

2) The probabihty dp of finding a system in a voliune element dx of the configuration space is ct)(t) dT, where ( ) is the complex conjugate function of ) (i becomes -i). 

The complex conjugate function is chosen so as to obtain a always positive and therefore a positive probability value. 

This relationship expresses the fact that a particle must necessarily be inside the configuration space. 

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