Quantum non-Markovianity and quantum Darwinism are two phenomena linked by a common theme: the flux of quantum information between a quantum system and the quantum environment it interacts with. In this work, making use of a quantum collision model, a formalism initiated by Sudarshan and his school, we will analyse the efficiency with which the information about a single qubit gained by a quantum harmonic oscillator, acting as a meter, is transferred to a bosonic environment. We will show how, in some regimes, such quantum information flux is inefficient, leading to the simultaneous emergence of non-Markovian and non-darwinistic behaviours.

中文翻译：

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用量子计读取量子比特量子态：量子达尔文主义和量子信息流的时间展开

量子非马尔可夫和量子达尔文主义是由一个共同主题联系在一起的两种现象：量子系统与其相互作用的量子环境之间的量子信息流。在这项工作中，利用由 Sudarshan 和他的学校发起的一种形式主义的量子碰撞模型，我们将分析由作为仪表的量子谐振子获得的单个量子比特信息传输到玻色子环境。我们将展示在某些情况下，这种量子信息流是如何效率低下的，从而导致同时出现非马尔可夫和非达尔文行为。