论文标题
负相关可以在无序量子步行中发挥积极作用
Negative correlations can play a positive role in disordered quantum walks
论文作者
论文摘要
我们调查了量子散步的新兴特性，该量子障碍是通过二进制马尔可夫链设计的，具有量身定制的相关性，$ c $和疾病强度，$ r $。我们表明，当该疾病很弱 - $ r \ ll 1 $ - 引入负相关性会导致相对于具有正相关的设置的自旋晶体纠缠熵（$ s_e $）的反直觉产生，即$ s_e（ - | c |）> s_e> s_e（| c |）$。这些结果表明，与文献相比，否定相关的疾病在量子纠缠中起着更重要的作用。
We investigate the emerging properties of quantum walks with temporal disorder engineered from a binary Markov chain with tailored correlation, $C$, and disorder strength, $r$. We show that when the disorder is weak -- $r \ll 1$ -- the introduction of negative correlation leads to a counter-intuitive higher production of spin-lattice entanglement entropy, $S_e$, than the setting with positive correlation, that is $S_e(-|C|)>S_e(|C|)$. These results show that negatively correlated disorder plays a more important role in quantum entanglement than it has been assumed in the literature.
