Revival of quantum correlations without system-environment back-action

Abstract

Revivals of quantum correlations have often been explained in terms of back-action on quantum systems by their quantum environment(s). Here we consider a system of two independently evolving qubits, each locally interacting with a classical random external field. The environments of the qubits are also independent, and there is no back-action on the qubits. Nevertheless, entanglement, quantum discord and classical correlations between the two qubits may revive in this model. We explain the revivals in terms of correlations in a classical-quantum state of the environments and the qubits. Although classical states cannot store entanglement on their own, they can play a role in storing and reviving entanglement. It is important to know how the absence of back-action, or modelling an environment as classical, affects the kind of system time evolutions one is able to describe. We find a class of global time evolutions where back-action is absent and for which there is no loss of generality in modelling the environment as classical. Finally, we show that the revivals can be connected with the increase of a parameter used to quantify non-Markovianity of the single-qubit dynamics.

8 pages, 4 figures; this version to appear in Phys. Rev. A

References in corpus (18)

• Finite-Time Disentanglement via Spontaneous Emission
• Necessary and sufficient condition for non-zero quantum discord
• Sudden Death of Entanglement
• Entanglement and non-Markovianity of quantum evolutions
• Quantum discord for two-qubit X-states
• Non-Markovian effects on the dynamics of entanglement
• Unified View of Quantum and Classical Correlations
• Robustness of quantum discord to sudden death
• Sudden transition between classical and quantum decoherence
• Non-Markovian Dynamics of Quantum Discord
• Dark periods and revivals of entanglement in a two qubit system
• Sudden Birth Versus Sudden Death of Entanglement in Multipartite Systems
• Non-Markovian effect on the quantum discord
• Entanglement dynamics of two independent qubits in environments with and without memory
• Sudden death and sudden birth of entanglement in common structured reservoirs
• Finding the Kraus decomposition from a master equation and vice versa
• Disentanglement and decoherence from classical non-Markovian noise: Random telegraph noise
• Dynamics of Entanglement Transfer Through Multipartite Dissipative Systems

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• Quantum Non-Markovianity: Characterization, Quantification and Detection
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• Enabling quantum non-Markovian dynamics by injection of classical colored noise
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• Quantum discord and non-Markovianity of quantum dynamics
• Effects of classical fluctuating environments on decoherence and bipartite quantum correlations dynamics
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• Dynamics and recovery of genuine multipartite Einstein-Podolsky-Rosen steering and genuine multipartite nonlocality for a dissipative Dirac system via Unruh effect
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• Spin-echo entanglement protection from random telegraph noise
• Quantum correlations of identical particles subject to classical environmental noise
• Non-divisibility vs backflow of information in understanding revivals of quantum correlations for continuous-variable systems interacting with fluctuating environments
• Broadcasting of Quantum Correlations: Possibilities & Impossibilities
• Sudden death and rebirth of Entanglement for Different Dimensional Systems driven by a Classical Random External Field
• Sudden Change of Quantum Discord under Single Qubit Noise
• Effective description of the short-time dynamics in open quantum systems
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• Robust engineering of maximally entangled states by identical particle interferometry
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