An Example from Physics: Thermodynamics

Abstract

To visualize the meaning of the index i, let us identify it with the velocity of a particle. In a more advanced theory p _i is the occupation probability of a quantum state i of a many-particle system. Further, we identify f ^(k) _i,α with energy E and the parameter a with the volume. Thus we put

$$$$

((4.1))

and have the identifications

$$$$

((4.2))

.