Searching for Schrödinger’s cat – How to turn photon quantum entanglement into a coreography

International Year of Light Blog

It was a sunny day in August 2013 when my friend Margherita and I decided that my PhD thesis on ‘Generation and manipulation of multiphoton quantum states of light’ could be an interesting dance subject.

Our aim was to participate in the ‘Dance your PhD’ contest. The summer heat and the clear Liguria Sea in front of us provided the right inspiration. I began to tell Margherita what my thesis was about. For three years, I had used light — specifically, the fundamental particle of the electromagnetic field, the photon — in order to explore the transition from the microscopic to the macroscopic world. To enlighten this micro-macro transition, I started with a funny story: the Schröedinger’s cat paradox.

Schoredinger’s cat paradox. Credits: Andrea Parisi Schoredinger’s cat paradox. Credits: Andrea Parisi

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