A física estatística tem suas raízes no século XIX, quando cientistas como Ludwig Boltzmann e James Clerk Maxwell começaram a desenvolver teorias sobre o comportamento dos gases. Eles introduziram conceitos como a distribuição de velocidades das moléculas e a ideia de que a entropia é uma medida da desordem ou aleatoriedade de um sistema.
The problem was the atomic theory. Many leading scientists (like Ernst Mach) were skeptical of atoms, viewing them as useful fictions. How could one prove that invisible, indivisible particles were responsible for the pressure of a gas or the temperature of a room? fisica estatistica
Perhaps the most famous application is the explanation of the black-body spectrum. By treating light as a gas of photons (bosons with zero chemical potential) that could be created and destroyed, and Albert Einstein derived Planck’s law . This required a new type of counting statistics—Bose-Einstein statistics—which changed physics forever. A física estatística tem suas raízes no século