Genetic algorithm optimized time varying magnetic field functions for stabilizing and maximizing entanglement in a decoherence-free Heisenberg spin dimer are presented. The oscillation in entanglement in a decoherence free magnetic spin dimer is presented. The effect on the coherence and population terms in the density matrix due to the time-varying magnetic field functions is discussed and viewed using two dimensional time varying plots of entanglement and three-dimensional Bloch sphere diagrams. This work shows that it is possible to remove the natural oscillatory nature of decoherence free entanglement and maximize entanglement using time varying transient magnetic field stabilizing functions.

提出了遗传算法优化的时变磁场函数，用于稳定和最大化无退相干海森堡自旋二聚体中的纠缠。提出了无退相干磁性自旋二聚体中的纠缠振荡。使用二维时变纠缠图和三维布洛赫球图讨论和观察时变磁场函数对密度矩阵中的相干和总体项的影响。这项工作表明，可以使用随时间变化的瞬态磁场稳定功能来消除退相干自由纠缠的自然振荡性质并最大化纠缠。