论文标题
3D两电子双重量子点：在存在磁场的两个不同限制电位下某些物理量的行为之间的比较
3D two-electron double quantum dot: comparison between the behavior of some physical quantities under two different confinement potentials in the presence of a magnetic field
论文作者
论文摘要
我们已经考虑了一个由两个耦合的量子点组成的系统，其中包含两个电子，即两个量子点，每个量子点彼此相邻，每个量子点彼此相邻，每个量子点都有一个多余的电子，并受到垂直于量子点平面的均匀磁场。研究了对电子受到的不同限制电势轮廓的影响。这项研究是根据基本逻辑量子栅极操作的兴趣进行的：我们一直在分析主要物理量的行为，这些行为应与两种不同的量子态操作有关，以涉及文献中发现的两种不同的约束概况。我们的目的是确定物理量对限制概况的敏感程度，在哪个磁场范围内，此问题可能至关重要。
We have considered a system consisting of two coupled quantum dots containing two electrons, i.e., two quantum dots next to each other with one excess electron each, subjected to an uniform magnetic field perpendicular to the quantum dots plane. The effect of different confinement potential profiles under which the electrons are subjected is studied. This study has been performed in the light of interest in fundamental logical quantum-gate operations: we have been concerned in analysing the behaviour of the main physical quantities which should be involved in a two-qubit quantum-gate operation for two different profiles of confinement found in literature. Our purpose was to establish how sensitive the physical quantities are to the confinement profile and in which range of magnetic field this issue can be critical.
