论文标题
检测接近born-markov近似值的量子非马克维亚性
Detection of quantum non-Markovianity close to the Born-Markov approximation
论文作者
论文摘要
我们以确切的方式计算了玻感浴中两级系统的衰减动力学的条件过去未来相关性。考虑了不同的测量过程。与仅基于系统传播属性的量子记忆度量相反，此处的内存效应与涉及两个系统传播器和环境相关性的卷积结构有关。该结构允许检测到记忆效应，甚至接近Born-Markov近似的有效性。从此结果遵循了基于环境到系统回流的替代基于操作的定义。我们通过在光子实验中实施动力学和测量来为我们的结果提供实验支持。
We calculate in an exact way the conditional past-future correlation for the decay dynamics of a two-level system in a bosonic bath. Different measurement processes are considered. In contrast to quantum memory measures based solely on system propagator properties, here memory effects are related to a convolution structure involving two system propagators and the environment correlation. This structure allows to detect memory effects even close to the validity of the Born-Markov approximation. An alternative operational-based definition of environment-to-system backflow of information follows from this result. We provide experimental support to our results by implementing the dynamics and measurements in a photonic experiment.
