论文标题
两个站点的连贯性和可见性
Two sites coherence and visibility
论文作者
论文摘要
波粒对偶性和量子力学状态的叠加提供了量子力学的独特特征，可将其与经典力学区分开，并使其具有明显的反向解释。这两个原理负责观察量子颗粒（例如电子，原子和分子）的干扰作用。可见性是对波性质的度量，但可以作为“归一化”相干量词。可见性的降低是由脱离（脱碳）引起的：相对阶段被部分或完全破坏导致粒子性质占主导地位的过程。我们使用密度矩阵公式在两个位点上计算单个电子和两个电子的集合的相干性和可见性。对于这样的电子系统，可见性和可预测性（粒子性质度量）遵循振荡式的时间演化，它们都不取决于单个粒子能量。
Wave-particle duality and the superposition of quantum mechanical states furnish quantum mechanics with unique features which distinguishes it from classical mechanics and give it the apparently counter-intuition interpretation. The two principles are responsible for the observation of the interference effects of quantum particles such as electrons, atoms and molecules. Visibility is a measure of the wave nature and can be though of as a "normalized" coherence quantifier. Reduction in the visibility arises from dephasing (decoherence): a process in which the relative phases get partially or totally destroyed leading to domination of the particle nature. We calculate the coherence and visibility of an ensemble of a single electron and two electrons on two sites using the density matrix formulation. For such a system of electrons, visibility and predictability (a particle nature measure) follow an oscillatory-complementary temporal evolution and neither of them depends on the single particle energy.
