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Lecture
Are you an EPFL student looking for a semester project?
Work with us on data science and visualisation projects, and deploy your project as an app on top of Graph Search.
This lecture covers the quantum optics description of a cavity, defining quantum input and outputs. Topics include cavity mode as a harmonic oscillator, Heisenberg-Langevin equation, input-output relation, one-sided cavity, two-sided cavity, and fiber taper. It delves into quantized optical cavity mode, cavity mode as an open system, quantum Langevin equations, time-reversed quantum Langevin equation, and quantum causality. The lecture also explores examples of empty one-sided and two-sided cavities, input-output ports, and scattering matrices. In summary, it provides a quantum picture of optical cavity field dynamics through Quantum Langevin equations, defining input and output fields and their relationships.