The role of information back-flow in the emergence of quantum Darwinism

Abstract

Quantum Darwinism attempts to explain the emergence of objective reality of the state of a quantum system in terms of redundant information about the system acquired by independent non interacting fragments of the environment. The consideration of interacting environmental elements gives rise to a rich phenomenology, including the occurrence of non-Markovian features, whose effects on objectification {\it a' la} quantum Darwinism needs to be fully understood. We study a model of local interaction between a simple quantum system and a multi-mode environment that allows for a clear investigation of the interplay between information trapping and propagation in the environment and the emergence of quantum Darwinism. We provide strong evidence of the correlation between non-Markovianity and quantum Darwinism in such a model, thus providing strong evidence of a potential link between such fundamental phenomena.

7 pages, 9 figures

References in corpus (11)

• Quantum Non-Markovianity: Characterization, Quantification and Detection
• Quantum Darwinism
• Foundations and Measures of Quantum Non-Markovianity
• A simple example of "Quantum Darwinism": Redundant information storage in many-spin environments
• Exciton-phonon information flow in the energy transfer process of photosynthetic complexes
• Quantum Darwinism in a hazy environment
• The Rise and Fall of Redundancy in Decoherence and Quantum Darwinism
• Collective decoherence of cold atoms coupled to a Bose-Einstein condensate
• Tuning non-Markovianity by spin-dynamics control
• Redundancy of einselected information in quantum Darwinism: The irrelevance of irrelevant environment bits
• Dissipation, dephasing and quantum Darwinism in qubit systems with random unitary interactions

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• (Anti-)Zeno-based dynamical control of the unfolding of quantum Darwinism
• Quantum Darwinism in a composite system: Objectivity versus classicality
• Quantum Darwinism and non-Markovianity in a model of quantum harmonic oscillators
• Witnessing non-objectivity in the framework of strong quantum Darwinism
• Classicality with(out) decoherence: Concepts, relation to Markovianity, and a random matrix theory approach
• Correlations, information backflow, and objectivity in a class of pure dephasing models
• Classifying two-body Hamiltonians for Quantum Darwinism
• Blurred quantum Darwinism across quantum reference frames
• Amplification, inference, and the manifestation of objective classical information
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• Read-out of Quasi-periodic Systems using Qubits
• The meaning of redundancy and consensus in quantum objectivity
• Observation of Quantum Darwinism and the Origin of Classicality with Superconducting Circuits
• Compatibility of Quantum Measurements and the Emergence of Classical Objectivity
• System-environment quantum information flow
• On the relation between quantum Darwinism and approximate quantum Markovianity
• How decoherence affects the security of BB84 quantum key distribution protocol
• Witnessing Objectivity on a Quantum Computer
• Many-body localization and the emergence of quantum darwinism
• Commutativity and the emergence of classical objectivity
• Metrological approach to the emergence of classical objectivity
• Environment-Assisted Shortcuts to Adiabaticity
• Thermality versus objectivity: can they peacefully coexist?