Recent developments allow heat capacities to be measured for size-selected clusters
isolated in the gas phase. For clusters with tens to hundreds of atoms, the heat capacities …

Understanding the origin of irreversibility in thermodynamics has been a fundamental
scientific challenge and puzzle for nearly a century. Initially, the discussions related to …

Nanoparticles have an immense importance in various fields, such as medicine, catalysis,
and various technological applications. Nanoparticles exhibit a significant depression in …

Theory and simulations are used to study collisionless relaxation of a gravitational N-body
system. It is shown that when the initial one-particle distribution function satisfies the virial …

We investigate the steady state of a system of photons in a pumped dye-filled microcavity. By
varying pump and thermalization the system can be tuned between Bose-Einstein …

In this work a mean-field crossover generated by the Maxwell construction is defined as the
dividing interface for the vapor–liquid interface area. An accurate and physically preferable …

In the absence of work, the exchange of heat of a sample of matter corresponds to the
change of its internal energy, given by the kinetic energy of random translational motion of …

We propose a new mechanism to explain the origin of negative heat capacity in small
systems. We show how a particular structure of the potential energy surface combined with a …

Calculating the melting temperature, T_m, by molecular dynamics (MD) simulations is a
controversial issue. Even first-principles molecular dynamics (FP-MD) simulations often give …

The temperature dependence of the specific (per atom) entropy and heat capacity of a
nanocrystal is studied using a nanocrystal model in the form of a rectangular parallelepiped …