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<p>An influence of environment on quantum correlations (entanglement and quantum discord) is studied in a two-spin-1/2 system with dipole-dipole interactions on the basis of Lindblad equation. We consider the simplest case when the environment causes only dephasing of system spins. The dependencies of entanglement and the quantum discord on the relaxation rate are obtained. We compare the influence of the environment on entanglement and quantum discord.</p>

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Influence of Environment on Quantum Correlations in Two-Spin Systems with Dipole-Dipole Interactions

  • 期刊论文

  • 发表日期：

    2026年7月11日

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  • G. A. Bochkin,
  • E. B. Fel’dman,
  • E. I. Kuznetsova,
  • E. I. Shipulya

摘要

An influence of environment on quantum correlations (entanglement and quantum discord) is studied in a two-spin-1/2 system with dipole-dipole interactions on the basis of Lindblad equation. We consider the simplest case when the environment causes only dephasing of system spins. The dependencies of entanglement and the quantum discord on the relaxation rate are obtained. We compare the influence of the environment on entanglement and quantum discord.