Quantum States of Light

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The book delves into the nature of quantum states of light, particularly focusing on single photon states through a wave perspective, illustrating the concept of quantum complementarity. It explores the creation of light waves from photons and demonstrates how optical waves arise from the superposition of a vacuum and a single photon. Additionally, it addresses squeezed states of light as longitudinal waves and examines Schrödinger's cat states as examples of macroscopic superpositions, providing a comprehensive understanding of these complex concepts.