Quantum Reservoir Engineering

This lecture covers the concept of quantum reservoir engineering, focusing on the creation of quantum states using relaxation processes. It discusses the powerful concept of creating non-classical states, the role of jump operators, and the relaxation mechanisms involved. The lecture also explores the concept of the pointer basis and how systems relax into preferred states. Additionally, it delves into squeezed and cat states, explaining how different eigenstates are achieved based on specific parameters. The spectral densities in quantum mechanics are also discussed, emphasizing the complex-valued nature of certain operators and the asymmetry in frequency responses. The lecture concludes with an example of voltage fluctuations in a resistor near absolute zero.