Quantum and classical dynamics of a three-mode absorption refrigerator

Quantum and classical dynamics of a three-mode absorption refrigerator

Blog Article

We study the quantum and classical evolution of a system of three harmonic modes interacting read more via a trilinear Hamiltonian.With the modes prepared in thermal states of different temperatures, this model describes the working principle of an absorption refrigerator that transfers energy from a cold to a hot environment at the expense of free energy provided by a high-temperature work reservoir.Inspired by a recent experimental realization with trapped ions, we elucidate key features of the coupling Hamiltonian that are relevant click here for the refrigerator performance.The coherent system dynamics exhibits rapid effective equilibration of the mode energies and correlations, as well as a transient enhancement of the cooling performance at short times.We find that these features can be fully reproduced in a classical framework.