Neuhaus, Thomas; Magiera, Martin; Hansmann, Ulrich H. E.:
Efficient parallel tempering for first-order phase transitions
In: Physical Review E : Statistical, nonlinear, and soft matter physics, Jg. 76 (2007), Heft 4, S. 045701 (4 Seiten)
2007Artikel/Aufsatz in Zeitschrift
Physik (inkl. Astronomie)
Damit verbunden: 1 Publikation(en)
Titel:
Efficient parallel tempering for first-order phase transitions
Autor*in:
Neuhaus, Thomas;Magiera, MartinUDE
LSF ID
50587
Sonstiges
der Hochschule zugeordnete*r Autor*in
;
Hansmann, Ulrich H. E.
Erscheinungsjahr:
2007

Abstract:

We present a Monte Carlo algorithm that facilitates efficient parallel tempering simulations of the density of states g(E). We show that the algorithm eliminates the supercritical slowing down in the case of the Q=20 and Q=256 Potts models in two dimensions, typical examples for systems with extreme first-order phase transitions. As recently predicted, and shown here, the microcanonical heat capacity along the calorimetric curve has negative values for finite systems.