Redundancy of classical and quantum correlations during decoherence

2009/09/02 by Juan Pablo Paz, Augusto J. Roncaglia · 1 citation
Computer Science · Mathematics · Physics and Astronomy · #Advanced Thermodynamics and Statistical Mechanics #Brownian motion #Computer science #Data mining #Mathematics #Measure (data warehouse) #Physics #Quantum #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum decoherence #Quantum discord #Quantum entanglement #Quantum mechanics #Redundancy (engineering) #Statistical physics #quant-ph

paper · pdf · doi:10.1103/physreva.80.042111

published as Phys. Rev. A 80, 042111 (2009) · 6 pages, 4 figures

arxiv created 2009/09/02 · openalex publication_date 2009/10/22 · arxiv updated 2015/05/14 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We analyze the time dependence of entanglement and total correlations between a system and fractions of its environment in the course of decoherence. For the quantum Brownian motion model, we show that the entanglement and total correlations have rather different dependence on the size of the environmental fraction. Redundancy manifests differently in both types of correlations and can be related with induced classicality. To study this, we present a measure of redundancy and compare it to the existing one.

Citations

• Quantum Darwinism in Quantum Brownian Motion
• Quantification and Scaling of Multipartite Entanglement in Continuous Variable Systems
• A Simple Example of “Quantum Darwinism”: Redundant Information Storage in Many-Spin Environments
• Bound Entangled Gaussian States
• Somewhere in the universe: Where is the information stored when histories decohere?
• Peres-Horodecki Separability Criterion for Continuous Variable Systems
• Quantum Darwinism

Cited by

• Quantum Darwinism in an Everyday Environment: Huge Redundancy in Scattered Photons