论文标题
中性介子进化的量子速度
Quantum speed of evolution of neutral mesons
论文作者
论文摘要
我们在开放量子系统的框架内研究了中性$ K $和$ b $介子的中性$ k $和$ b $介子的量子机械时间进化速度限制。相干性 - 混合的作用，是基础量子系统开放系统演变（在这里，介子）在量子机械时间进化速度极限上的关键特征。还研究了违反量子和机械时间进化速度极限的反谐解和CP（电荷共轭平价）对称的影响。量子力学的时间进化速度极限随着单个介子的演变时间而增加，这是进化的基本开放系统动力学的签名。相关的介子的演变速度减慢了大约四分之一寿命的演变时间，之后它被加速。出现的总体模式是，与不相关的介体相比，相关的介体的发展速度更快，这表明量子相关性可以加快进化。
We investigate the quantum-mechanical time-evolution speed limit for neutral $K$ and $B$ mesons, both single as well as correlated, within the framework of open quantum systems. The role of coherence--mixing, a crucial feature of the open system evolution of the underlying quantum systems (here, the mesons), on the quantum-mechanical time-evolution speed limit is studied. The impact of decoherence and CP (charge conjugation parity) symmetry violation on quantum-mechanical time-evolution speed limit is also investigated. The quantum-mechanical time-evolution speed limit increases with the evolution time for the single mesons, a signature of the underlying open system dynamics of the evolution being semi-group in nature. The evolution of the correlated mesons slows down for an evolution time of approximately one-fourth of the lifetime, after which it is sped up. An overall pattern that emerges is that correlated mesons evolve faster as compared to their uncorrelated counterparts, suggesting that quantum correlations can speed up evolution.
