Explore the cutting-edge field of coherent X-ray science in this 41-minute APS March Meeting 2015 Kavli Foundation Special Symposium talk. Delve into modern physics concepts, visible laser applications, and the latest progress in X-ray devices. Learn about nonlinear optics, harmonics of light, and the revolutionary femtosecond laser. Discover the principles behind quantum nanoscale antennas, dipole emission, and laser incident phenomena. Examine weak emission, ionization processes, and synchronization techniques. Gain insights into quantum simulation, classical field theory, and time resolution in X-ray imaging. Discuss current limitations and potential next steps in this rapidly evolving area of research. Engage with thought-provoking questions to deepen your understanding of coherent X-ray science and its implications for future technological advancements.