Why nature made chemical potential of photons zero, for a black body?

Reshma. P, Prasanth. P, Sreshma Rajan and K. M. Udayanandan

Former HOD NAS College

Chemical potential of photons in a black body is zero. Thermodynamic interpretations for this can be seen in books and publications[1, 2, 3]. In this short communication we are trying to find out the reasons of making zero chemical potential of photons in a hot body from the quantum statistical mechanics view point.