Use the microcanonical distribution to calculate thermodynamic
properties (including entropy, all relevant thermodynamic
potentials, and heat capacity), of an ensemble of similar two-level
systems, in thermodynamic equilibrium at temperature T that is
comparable with the energy gap (delta). For each variable, sketch
its temperature dependence, and find its asymptotic values (or
trends) in the low- temperature and high-temperature limits.
Hint: The two-level system is generally defined as any system
with just two relevant states whose energies, say E0 and E1,...