Short Communication Open Access

Decoherence in Atom-Field Interactions and Quantum Entropy

Abstract

The concept of decoherence is introduced and studied in some situations in which there is an atom-field interaction. This type of physical model can be applied to the areas of quantum optics, information processing and computing. It offers the opportunity to observe how unitarity is affected by decoherence. A master equation is solved for the density matrix in a rigorous manner which can be used to calculate system entropy. Pure states and mixtures can also be discussed based on this.

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