论文标题
量子点系统中的量子相关性和量子记忆辅助熵不确定性关系
Quantum correlations and quantum-memory-assisted entropic uncertainty relation in a quantum dot system
论文作者
论文摘要
不确定性原理是量子理论中的全面和基本概念之一。该原则指出，不可能以很高的精度同时测量两个不相容的观测值。不确定性原理已经以各种形式提出。最著名的不确定性关系类型是根据可观察到的标准偏差表示的。在量子信息理论中，不确定性原理可以使用香农和冯·诺伊曼的熵提出。在存在量子记忆的情况下，熵不确定性关系是最有用的熵不确定性关系之一。由于其重要性和可扩展性，如今固态系统受到了广泛的关注。在这项工作中，我们将将量子点系统视为固态系统。我们将研究该系统类型中的量子相关性和量子记忆辅助熵不确定性。我们将证明量子点系统的温度会影响量子相关性和熵不确定性结合。可以观察到，随着温度降低，熵不确定性结合随温度升高而降低。
The uncertainty principle is one of the comprehensive and fundamental concept in quantum theory. This principle states that it is not possible to simultaneously measure two incompatible observatories with high accuracy. Uncertainty principle has been formulated in various form. The most famous type of uncertainty relation is expressed based on the standard deviation of observables. In quantum information theory the uncertainty principle can be formulated using Shannon and von Neumann entropy. Entropic uncertainty relation in the presence of quantum memory is one of the most useful entropic uncertainty relations. Due to their importance and scalability, solid state systems have received considerable attention nowadays. In this work we will consider a quantum dot system as a solid state system. We will study the quantum correlation and quantum memory assisted entropic uncertainty in this typ of system. We will show that the temperature in of quantum dot system can affect the quantum correlation and entropic uncertainty bound. It will be observed that the entropic uncertainty bound decreases with decreasing temperature and quantum correlations decreases with increasing the temperature.
