[seminar] Seminar =?iso-8859-2?Q?Kui=E6=2C_=C8etvrtak=2C_15._3._2018.=2C_11h_Fizi=E8ki_odsj?=ek=?iso-8859-2?Q?=2C_Plava_soba_?=(1. kat)

[Hrvoje Buljan]

Poštovani kolege, najavljujem sutrašnji seminar (vidi privitak):

Dear colleagues, I would like to announce tomorrow's seminar (see
attachment):


Četvrtak, 15. 3. 2018., 11h Fizički odsjek, Plava soba (1. kat)

Relation between Boltzmann and Gibbs entropy and examples

Domagoj Kuić, Split

By simple derivation it is demonstrated that a general relation between
mean Boltzmann entropy and Gibbs entropy exists. Their difference is equal
to fluctuation entropy, quantity that has a Gibbs like form and represents
the entropy of fluctuations of macroscopic quantities that determine the
macroscopic state of the system. It is shown that the ratio of fluctuation
entropy and mean Boltzmann entropy, or Gibbs entropy, vanishes in the
thermodynamic limit for a system of distinguishable and independent
particles. The described behaviour is examined on the example of Ising 3D
model with ferromagnetic transition. In case that in thermodynamic limit
the fluctuation entropy is not negligible compared to mean Boltzmann
entropy and Gibbs entropy, this may indicate that the standard statistical
approach should be modified, or extended using other methods like
renormalization group.

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