Decoherence effects on local quantum Fisher information and quantum coherence in a spin-1/2 Ising-XYZ chain

TL;DR

This study investigates how decoherence influences quantum coherence and Fisher information in a spin-1/2 Ising-XYZ chain, revealing complex interactions and resilience of certain quantum properties under environmental effects.

Contribution

It provides new insights into the impact of decoherence on quantum correlations in spin chains, comparing Ising-XYZ and Heisenberg models with emphasis on coherence and Fisher information dynamics.

Findings

Quantum coherence decreases due to decoherence, but Fisher information remains more resilient.

Ising interactions increase entanglement while environmental effects reduce coherence.

Decoherence impacts quantum correlations differently depending on the model and parameters.

Abstract

This research explores the effects of decoherence on local quantum Fisher information and quantum coherence dynamics in a spin-1/2 Ising-XYZ chain model with independent reservoirs at zero temperature. Contrasting these effects with those in the spin-1/2 Heisenberg XYZ model reveals intricate interactions among quantum coherence, entanglement, and environmental decoherence in spin systems. Analysis of coherence dynamics highlights differences between the original and hybrid models, showcasing increased entanglement due to Ising interactions alongside reduced coherence from environmental redistribution. The local quantum Fisher information proves more resilient than coherence in specific scenarios, emphasizing decoherence is varying impacts on quantum correlations. This research underscores the complexity of quantum coherence dynamics and the crucial role of environmental factors in shaping quantum correlations, providing insights into entanglement and coherence behavior under environmental influences and guiding future studies in quantum information processing and correlation dynamics.