講演情報
[19a-B203-9][Fellow International 2023 Special Lecture] Quantum Vacuum Dressed Materials in Terahertz Cavities
〇Junichiro Kono1 (1.Rice Univ.)
キーワード：
ultrastrong coupling、cavity quantum electrodynamics
There is much interest in studying “strongly driven” materials in the complete absence of any external fields other than the vacuum, or zero-point, electromagnetic fields. Engineering the vacuum surrounding the material can lead to nonintuitive modifications of materials properties. Recent theoretical studies predict a variety of cavity-enhanced, -induced, and/or -mediated phenomena. The ultrastrong coupling (USC) regime arises when the Rabi frequency becomes a significant fraction of the bare cavity and matter frequencies. The terahertz frequency range is ideal for exploring USC physics because of the existence of excitations with giant dipole moments. This talk will describe our recent studies of USC phenomena in various materials in terahertz cavities to explore new states and phenomena. These results provide quantum optical strategies for creating, controlling, and utilizing novel phases in materials enabled by the quantum vacuum.