论文标题
浸入自旋浴的两个中央旋转的动力学
Dynamics of two central spins immersed in spin baths
论文作者
论文摘要
在本文中，我们得出了两个量子（自旋1/2）系统的精确动力学，与单独的费米子浴场相互作用，该浴缸由量子台组成。此外，浴缸的每种自旋与同一浴室的其他所有自旋结合在一起。构建了相应的动态图。它用于分析两个Qubit Central Spin动力学的非马克维亚性质。我们进一步观察到在环境相互作用的影响下，纠缠和不和谐等量子相关性的演变。此外，我们证明了这种精确的两个量子动力学与局部作用的费米克中心自旋模型之间的比较。这项工作是实现非马克维亚热发动机和其他量子热器件的垫脚石。
In this article we derive the exact dynamics of a two qubit (spin 1/2) system interacting centrally with separate fermionic baths composed of qubits in thermal state. Further, each spin of a bath is coupled to every other spin of the same bath. The corresponding dynamical map is constructed. It is used to analyse the non-Markovian nature of the two qubit central spin dynamics. We further observe the evolution of quantum correlations like entanglement and discord under the influence of the environmental interaction. Moreover, we demonstrate the comparison between this exact two qubit dynamics and the locally acting fermionic central spin model. This work is a stepping stone towards the realization of non-Markovian heat engines and other quantum thermal devices.
