Examining a Quantum System Subject to Energy Decoherence

TL;DR

This paper investigates energy decoherence in interacting quantum systems, analyzing experimental motivations, dynamic effects in closed systems, and connections to thermodynamics through analytical and numerical methods.

Contribution

It introduces a detailed study of energy decoherence in closed quantum systems with oscillators and spins, combining analytical and numerical approaches.

Findings

Energy decoherence occurs dynamically in closed systems.

Decoherence effects differ significantly from non-decoherent cases.

Connections between energy decoherence and thermodynamic principles are established.

Abstract

This paper studies the energy decoherence of an interacting quantum system. It first reviews the experiments that motivated the postulates of quantum mechanics. It then discusses a decoherence that occurs dynamically in a closed system. This effect is studied in interacting quantum systems consisting of an oscillator and spins using analytical and numerical methods. The subsequent results are contrasted with cases with no decoherence. Connections of energy decoherence with thermodynamics are explored.