Low temperature resonances in the fermion heat capacity of finite systems

The Canonical Heat Capacity of Normal Mesoscopic Fermion Systems: The Temperature Evolution and Particle Number Oscillations

The heat capacity of an individual mesoscopic normal (nonsuperconducting) fermion system treated as a canonical ensemble of independent particles confined in a spatial area with fixed confinement parameters is studied in a wide range of particle numbers N < 105 and temperatures which vary from values close to zero up to the Fermi energy εF . The temperature evolution of the heat capacity is nat...

Low-temperature excess heat capacity in fresnoite glass and crystal

The effect of thermal annealing on low-temperature excess heat capacity was investigated in fresnoite (Ba2TiSi2O8) glass. The amplitudes of the excess heat capacity decreased, and their positions shifted to a higher temperature by relaxation or crystallization. In particular, we revealed that the change in the excess heat capacity during transition from the glassy state to the crystalline state...

Variational Calculations for the Relativistic Interacting Fermion System at Finite Temperature: Application to Liquid 3He

In this paper, at first we have formulated the lowest order constrained variational method for the relativistic case of an interacting fermion system at finite temperature. Then we have used this formalism to calculate some thermodynamic properties of liquid in the relativistic regime. The results show that the difference between total energies of relativistic and non-relativistic cases of liqu...

Temperature in Fermion Systems and the Chiral Fermion Determinant

We give an interpretation to the issue of the chiral determinant in the heatkernel approach. The extra dimension (5-th dimension) is interpreted as (inverse) temperature. The 1+4 dim Dirac equation is naturally derived by the Wick rotation for the temperature. In order to define a “good” temperature, we choose those solutions of the Dirac equation which propagate in a fixed direction in the ext...

Low-temperature Normal-state Heat Capacity of Tungsten