From knotted cords to contemporary computers, the revolution in information technologies has been a major driving force of human civilization. Since its emergence in the early 1900s, quantum mechanics has played a foundational role in enabling many
transformative technologies—such as lasers and transistors—that are now recognized as hallmarks of the first quantum revolution. Over the past two decades, the focus has shifted to the second quantum revolution, which aims to develop novel quantum
technologies that harness the creation, manipulation, and measurement of quantum superposition and entanglement in physical systems. In this talk, I will provide an overview of this rapidly evolving field and highlight the transformative potential of
quantum technologies through two illustrative examples involving ultracold atoms and trapped ions controlled by light: (i) quantum simulation of topological quantum matter, such as triply-degenerate fermions; and (ii) quantum squeezing and sensing via
exceptional points in nonlinear optical media. Despite significant technological challenges, these emerging quantum technologies hold great promise to revolutionize computing, communication, security, materials science, and sensing in the near future.