Lecture
This lecture covers the concept of quantum polarisation, including examples of quantum bits and Young's interference experiment. It explores the notion of quantum elasticity related to the wave function, with a focus on spatial structure and parametrization of wave vectors. The lecture delves into the quantum state associated with the 'photoy' wave function, emphasizing the spatial structure and parametrization of wave vectors. It concludes with a detailed discussion on the degree of freedom of polarisation and the representation of quantum states.