於原子陣列與納米光波導中以量子雕刻製造糾纏態

Abstract

在本論文中，我們研究了一維原子陣列與手性耦合納米光波導中光與原子的相互作用。在我們的模型中，手性相互作用為該系統的光反應提供了額外的控制參數，例如原子數目、相鄰原子之間的相對相位和手性等。原子之間的手性相互作用可以被調整，使得該系統的光反應在不同條件下可以產生巨大變化。我們還研究了手性相互作用在從弱到強耦合區域的不同腔參數下的後果，以便更好地理解原子和共振腔在該模型中的作用。此外，我們提出了一種基於反射率量子態雕刻來製造量子糾纏態的方法，并且以此方法我們可以在特定參數下，與兩個或以上的原子列系統中，產生貝爾態或 W 態以及 GHZ 態。

In this thesis, we study the light-atom interaction of a one-dimensional atomic array with chiral coupling between atoms which are strongly coupled to a nanophotonic waveguide. In our model, we introduce the chiral couplings between atoms, in addition to other various parameters involving the number of atoms, relative phases between neighboring atoms and the chirality, which serves as the control knobs for some interesting application in this system. The chiral interaction between the atoms can be tuned such that the light response of this system can have drastic change under different conditions. We also study the consequences of the chiral interaction under different cavity parameters from weak to strong coupling regime for the understanding of the role of atom and the cavity in this model. Furthermore, we propose an entanglement generation scheme based on thereflectivity-based state carving protocol which can generate Bell states or W states in two or higher qubit numbers system respectively under specific parameters.