# Quantum trajectory approach to the geometric phase: open bipartite systems

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Through the quantum trajectory approach, we calculate the geometric phase acquired by a bipartite system subjected to decoherence. The subsystems that compose the bipartite system interact with each other, and then are entangled in the evolution. The geometric phase due to the quantum jump for both the bipartite system and its subsystems are calculated and analyzed. As an example, we present two coupled spin-$\frac 1 2$ particles to detail the calculations.

Autor: X. X. Yi; D. P. Liu; W. Wang

Fuente: https://archive.org/