Various Correlations in Anisotropic Heisenberg XYZ Model with Dzyaloshinski-Moriya Interaction
arXiv:1207.0277 · doi:10.1088/0256-307X/30/3/030303
Abstract
Various thermal correlations as well as the effect of intrinsic decoherence on the correlations are studied in a two-qubit Heisenberg XYZ spin chain with the Dzyaloshinski--Moriya (DM) interaction along the z direction, i.e. Dz. It is found that tunable parameter Dz may play a constructive role on the concurrence (C), classical correlation (CC) and quantum discord (QD) in thermal equilibrium while it plays a destructive role on the correlations in the intrinsic decoherence case. The entanglement and quantum discord exhibit collapse and revival under the phase decoherence. With a proper combination of the system parameters, the correlations can effectively be kept at high steady state values despite the intrinsic decoherence.
arXiv comment4 pages, 4 figures
References in corpus (26)
- Entanglement of Formation of an Arbitrary State of Two Qubits
- Introducing Quantum Discord
- Finite-Time Disentanglement via Spontaneous Emission
- Quantum discord and the power of one qubit
- Necessary and sufficient condition for non-zero quantum discord
- Experimental quantum computing without entanglement
- Quantum discord for two-qubit X-states
- Classical Correlation and Quantum Discord in Critical Systems
- Robustness of quantum discord to sudden death
- Sudden transition between classical and quantum decoherence
- Classical and quantum correlations under decoherence
- Non-Markovian Dynamics of Quantum Discord
- Quantum discord and quantum phase transition in spin chains
- Quantum discord for general two--qubit states: Analytical progress
- Vanishing quantum discord is necessary and sufficient for completely positive maps
- Non-Markovian effect on the quantum discord
- Linking Quantum Discord to Entanglement in a Measurement
- Thermal and Magnetic Quantum Discord in Heisenberg models
- System-reservoir dynamics of quantum and classical correlations
- Quantum Discord and the Geometry of Bell-Diagonal States
- Experimental demonstration of photonic entanglement collapse and revival
- Quantum discord in finite XY chains
- Non-classical correlations in non-Markovian continuous variable systems
- Amplification of quantum discord between two uncoupled qubits in a common environment by phase decoherence
- Entanglement and Discord of superposition of Greenberger-Horne-Zeilinger states
- Quantum discord and entanglement in Heisenberg XXZ spin chain after quenches
Cited by in corpus (4)
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- Effects of DM and KSEA interactions on entanglement, Fisher and Wigner-Yanase information correlations of two XYZ-Heisenberg-qubit states under a magnetic field
- Statistical Model of the Early Stage of nucleus-nucleus collisions with exact strangeness conservation
- Rare semileptonic decay of meson In QCD