Universal evolution of non-classical correlations due to collective spontaneous emission

Abstract

We explore the spontaneous generation and decay of quantum correlations between two identical atoms coupled to a common Markovian environment in the presence of electromagnetic field modes. For this purpose, we analyze the dynamics of quantum correlations by employing the concurrence, the trace quantum discord and the local quantum uncertainty, for collective Dicke states. It is shown that the collective damping and dipole-dipole interaction plays a key role in enhancing non-classical correlations during the process of intrinsic decoherence. The quantum correlations can be maintained over a long time but for small distance between the two atoms.

arXiv comment10 Pages, 12 Figures

References in corpus (45)

• Entanglement of Formation of an Arbitrary State of Two Qubits
• Separability Criterion for Density Matrices
• A computable measure of entanglement
• Introducing Quantum Discord
• Concentrating Partial Entanglement by Local Operations
• Purification of Noisy Entanglement and Faithful Teleportation via Noisy Channels
• Entanglement of a Pair of Quantum Bits
• Classical, quantum and total correlations
• Finite-Time Disentanglement via Spontaneous Emission
• The classical-quantum boundary for correlations: discord and related measures
• Necessary and sufficient condition for non-zero quantum discord
• Sudden Death of Entanglement
• On the Power of One Bit of Quantum Information
• Quantum discord for two-qubit X-states
• Characterizing Nonclassical Correlations via Local Quantum Uncertainty
• Classical and quantum correlations under decoherence
• Creation of Entanglement by Interaction with a Common Heat Bath
• Thermodynamics and the Measure of Entanglement
• Dark periods and revivals of entanglement in a two qubit system
• Interpreting quantum discord through quantum state merging
• Operational interpretations of quantum discord
• The Ion Trap Quantum Information Processor
• Quantum discord of two-qubit X-states
• Non-Markovian effect on the quantum discord
• Geometric quantum discord through the Schatten 1-norm
• The problem with the geometric discord
• Delayed (sudden) birth of entanglement
• Quantum discord bounds the amount of distributed entanglement
• Toward computability of trace distance discord
• Quantum cost for sending entanglement
• Optimal measurements to access classical correlations of two-qubit states
• Comparative investigation of the freezing phenomena for quantum correlations under nondissipative decoherence
• Mixedness and teleportation
• Theoretical and experimental aspects of quantum discord and related measures
• Unified view of correlations using the square norm distance
• Dynamics of geometric and entropic quantifiers of correlations in open quantum systems
• Unifying approach to the quantification of bipartite correlations by Bures distance
• Quantum discord cannot be shared
• Sudden change of quantum discord for a system of two qubits
• Quantum correlations as precursors of entanglement
• Quantum dark soliton (qubits) in Bose Einstein condensates
• The dynamics of local quantum uncertainty and trace distance discord for two-qubit X states under decoherence: a comparative study
• Geometric classical and total correlations via trace distance
• Preservation of the geometric quantum discord in noisy environments
• Geometric Measure of Pairwise Quantum Discord for Superpositions of Multipartite Generalized Coherent States

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• Estimating phase parameters of a three-level system interacting with two classical monochromatic fields in simultaneous and individual metrological strategies
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• Enhancing the estimation precision of an unknown phase shift in multipartite Glauber coherent states via skew information correlations and local quantum Fisher information
• Qubit-Qutrit ($2\otimes 3$) quantum systems: An investigation of some quantum correlations under collective dephasing
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• Dynamics of Quantum Coherence and Non-Classical Correlations in Open Quantum System Coupled to a Squeezed Thermal Bath