Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2003-06-27
Physics
Nuclear Physics
Nuclear Theory
16 pages including 10 figures
Scientific paper
Caloric curves have traditionally been derived within the microcanonical ensemble via dS/dE=1/T or within the canonical ensemble via E=T^2*d(ln Z)/dT. In the thermodynamical limit, i.e., for large systems, both caloric curves give the same result. For small systems like nuclei, the two caloric curves are in general different from each other and neither one is reasonable. Using dS/dE=1/T, spurious structures like negative temperatures and negative heat capacities can occur and have indeed been discussed in the literature. Using E=T^2*d(ln Z)/dT a very featureless caloric curve is obtained which generally smoothes too much over structural changes in the system. A new approach for caloric curves based on the two-dimensional probability distribution P(E,T) will be discussed.
Guttormsen M.
Hjorth-Jensen Morten
Rekstad J.
Schiller Avraham
Siem S.
No associations
LandOfFree
Caloric curves of atomic nuclei and other small systems does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Caloric curves of atomic nuclei and other small systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Caloric curves of atomic nuclei and other small systems will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-480084