Entropy of relativistic Boltzmann gas?

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SUMMARY

The discussion focuses on calculating the entropy of a relativistic Boltzmann gas, specifically addressing the partition function and energy summation. The key equations mentioned include the energy-momentum relationship, where ε = pc, and the momentum p is defined in three dimensions. The participant expresses uncertainty about summing energies and suggests using the relation p = ħω/2π, indicating a need for clarity on quantum statistical mechanics principles. The conversation emphasizes the importance of consulting classical statistical physics texts for foundational concepts.

PREREQUISITES
  • Understanding of relativistic physics concepts, particularly energy-momentum relations.
  • Familiarity with statistical mechanics and the Boltzmann distribution.
  • Knowledge of quantum mechanics, specifically photon gas treatment.
  • Experience with partition functions in statistical physics.
NEXT STEPS
  • Study the derivation of the partition function for a relativistic gas.
  • Learn about the statistical mechanics of photon gases and their entropy calculations.
  • Explore the relationship between momentum and energy in relativistic contexts.
  • Review classical statistical physics texts for foundational theories on gas entropy.
USEFUL FOR

Students and researchers in physics, particularly those focusing on statistical mechanics, thermodynamics, and quantum mechanics, will benefit from this discussion.

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Homework Statement



I'm given a relativistic Boltzmann gas and told to find the entropy

Homework Equations



\epsilon = pc
p = 3d momentum
c = speed of light

The Attempt at a Solution



I tried to start by finding the partition function, from which I can just take the derivative, but I don't know how I would sum the energies. Would I merely use p=hw/2*pi summed over all frequencies from 0 to infinity?
 
Physics news on Phys.org
The treatment of a photon gas within quantum statistics is a classical subject of statistical physics texts. So open a book...
 

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