A thermodynamic origin for the Cohen-Kaplan-Nelson bound

  title={A thermodynamic origin for the Cohen-Kaplan-Nelson bound},
  author={Satish Ramakrishna},
  journal={Europhysics Letters},
The Cohen-Kaplan-Nelson bound is imposed on the grounds of logical consistency (with classical General Relativity) upon local quantum field theories. This paper puts the bound into the context of a thermodynamic principle applicable to a field with a particular equation of state in an expanding universe. This is achieved without overtly appealing to either a decreasing density of states or a minimum coupling requirement, though they might still be consistent with the results described. We do so… 


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