论文标题
有偏见的马赫德干涉仪中的量子相干性与干涉能见度
Quantum coherence versus interferometric visibility in a biased Mach-Zehnder interferometer
论文作者
论文摘要
平衡梁拆分器的双缝干涉仪和Mach-Zehnder干涉仪（MZI）是用于研究量子波粒子偶性的典型设置。这些设置诱导了干涉可见性（IVI）与单个量子系统（WAQ）的波动方面的定量关联。最近，人们意识到，量子相干性（QC）可以比IVI更适合于量化互补关系中的WAQ。在本文中，我们调查了输入和输出中具有偏置光束拆分器的MZI，我们表明，在某些情况下，IVI不足以量化WAQ，因为它也不反映量子相干性的行为，即使对于双量尺寸封闭的封闭量子系统也不反映。使用IBM量子计算机，我们通过对具有偏置光束拆分器的光学MZI进行完整的量子模拟来实验验证我们的理论发现。
The double-slit interferometer and the Mach-Zehnder interferometer (MZI) with balanced beam splitters are prototypical setups for investigating the quantum wave-particle duality. These setups induced a quantitative association of interferometric visibility (IVI) with the wave aspect of a single quantum system (WAQ). Recently, it was realized that quantum coherence (QC) can be better suited than IVI for quantifying the WAQ in complementarity relations. In this article, we investigate a MZI with biased beam splitters both in the input and the output, and we show that in some cases the IVI is not adequate to quantify the WAQ since it does not reflect the behavior of the quantum coherence, even for a bi-dimensional closed quantum system. Using IBM quantum computers, we experimentally verify our theoretical findings by doing a full quantum simulation of the optical MZI with biased beam splitters.
