量子光无序增强量子过程层析成像
Disorder Enhanced Quantum Process Tomography using Quantum Light
摘要：
量子过程层析成像可能是最重要的范式转变，尚未完全转化为理论化学。它的基本力量，长期建立在量子信息科学，提供了丰富的信息，量子动力学过程的核心，许多（如果不是全部）化学过程。然而，由于其复杂性，其应用于实际的化学系统目前是实验无法达到的。此外，由于实验和理论上的不准确性，它容易出错，长期以来，人们一直认为无序是其适用性的障碍。在这里，我提出的第一个结果的研究使用量子光的量子过程断层扫描。通过使用一个玩具模型和比较数值模拟的理论预测，使用非常规光的可能增强进行了研究。然而，人们发现，无序是必要的，使量子光适合过程层析成像的使用，并且与传统的智慧相反，无序可以使结果比有序系统更准确。
英文摘要：
Quantum process tomography might be the most important paradigm shift which has yet to be translated fully into theoretical chemistry. Its fundamental strength, long established in quantum information science, offers a wealth of information about quantum dynamic processes which lie at the heart of many (if not all) chemical processes. However, due to its complexity its application to real chemical systems is currently beyond experimental reach. Furthermore, it is susceptible to errors due to experimental and theoretical inaccuracies and disorder has long been thought to be an obstacle in its applicability. Here, I present the first results of a study into the use of quantum light for quantum process tomography. By using a toy model and comparing numerical simulations to theoretical predictions the possible enhancement of using non-conventional light is studied. It is found, however, that disorder is necessary make the use of quantum light suitable for process tomography and that, in contrast to conventional wisdom, disorder can make the results more accurate than in an ordered system.
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