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Towards a dynamical temperature of finite Hamiltonian systems

Author

Listed:
  • Yan, Shiwei
  • Wang, Qi
  • Liu, Shengjun

Abstract

With the aid of numerical simulations of the β Fermi-Pasta-Ulam (FPU) system, we compare the different definitions of dynamical temperature for Hamiltonian systems. We have shown that each definition gives different values of temperature for a system with a small number of degrees of freedom (DOF). Only for systems with a sufficiently large number of DOF, do all the definitions of dynamical temperature approach the same value.

Suggested Citation

  • Yan, Shiwei & Wang, Qi & Liu, Shengjun, 2009. "Towards a dynamical temperature of finite Hamiltonian systems," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 388(24), pages 4943-4949.
    • Handle: RePEc:eee:phsmap:v:388:y:2009:i:24:p:4943-4949
    DOI: 10.1016/j.physa.2009.08.028
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