Paper 1 (source code)

= Paper 1
{scope}
{title2=Nonlinear Optics and Quantum States of Light}
{title2=2/NOQL}

Original public paper: https://www.whatdotheyknow.com/request/natural_science_tripos_physics_e_2/response/2340776/attach/2/FOI%202023%20399%20Zahid%20materials.pdf?cookie_passthrough=1#page=826[Physical PDF pages 826–828]. All three questions and all alternatives in question 2 are answered. Optical amplitudes and quadratures use the normalization printed in the paper; factors of two depend on that convention.