Download or read book Strong Light-matter Interaction with Cavities for Quantum Information Processing written by Hyeongrak Choi and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Strong light-matter interaction enabled many modern technologies such as precision metrology, light sources, optical communication and spectroscopy. Normally, the coupling between materials and photons in free-space is weak, limiting the performance of these applications. Photonic cavities can boost this interaction by holding and confining photons in a small space. On the other hand, quantum information science demands extremely strong light-matter interaction. Qubits, the smallest unit of quantum information, needs to be isolated from the environment to preserve its fragile superposition state. Often, single-photons mediate the interaction between distant isolated qubits due to their low loss. Because it is only a single photon and single qubit, the interaction is naturally very weak and needs to be enhanced using photonic cavities.