Probabilities and statistical mechanics of large and small systems (CROSBI ID 637901)
Prilog sa skupa u zborniku | sažetak izlaganja sa skupa | međunarodna recenzija
Podaci o odgovornosti
Kuić, Domagoj
engleski
Probabilities and statistical mechanics of large and small systems
It is known that statistical mechanics reproduces the thermodynamic properties of large systems in equilibrium. Standard examples are thermodynamic potentials derived in statistical mechanics for systems described by microcanonical, canonical or grand canonical ensemble. However, use of these ensembles is generally based on the assumption that the interaction of the system with its environment is weak, and therefore, the correlations existing between the degrees of freedom of the two can be neglected. This effectively means the statistical independence of the system and environment microscopic degrees of freedom. On the other hand, for „very small“ systems driven out of thermodynamic equilibrium by external forcing, the assumption of weak interaction between the system and its environment compared to the bare system Hamiltonian is not always justified. By following the approach of [1], which extends the validity of the Crooks fluctuation theorem [2] and the Jarzynski nonequilibrium work relation [3] to the quantum systems strongly coupled with their environments, we explain how that leads to a reformulation of the standard statistical mechanics expressions for thermodynamic quantities like free energy and entropy. This raises also interesting questions about the additivity and extensivity of these quantities. [1] M. Campisi, P. Talkner, P. Hanggi, Phys. Rev. Lett. 102, 210401 (2009) [2] G.E. Crooks, Phys. Rev. E 60, 2721 (1999) [3] C. Jarzynski, Phys. Rev. Lett. 78, 2690 (1997) [4] D. Kuić, Eur. Phys. J. B 89, 124 (2016)
probabilities; statistical mechanics; nonequilibrium theory; Crooks fluctuation theorem; Jarzynski nonequilibrium work relation; strong system - environment coupling; thermodynamic potentials
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
Podaci o prilogu
2016.
objavljeno
Podaci o matičnoj publikaciji
Physics & Philosophy, The Fifth Conference, Basic Concepts of Physics, Book of Abstracts, Split, 7–8 July 2016 / Gabriela Bašić, Luka Boršić, Ljudevit Hanžek, Dragan Poljak, Ivana Skuhala Karasman, Franjo Sokolić, Berislav Žarnić
Gabriela Bašić, Luka Boršić, Ljudevit Hanžek, Dragan Poljak, Ivana Skuhala Karasman, Franjo Sokolić, Berislav Žarnić
Split:
Podaci o skupu
The Fifth PHYSICS & PHILOSOPHY Conference "Basic Concepts of Physics", University of Split - Croatia, 7--8 July 2016
predavanje
07.07.2016-08.07.2016
Split, Hrvatska