In 1985, an experimental test between the many-worlds theory and Copenhagen interpretation was proposed - which catalysed the proposal for a universal quantum computer.

In this video, Oxford PhD researcher Maria Violaris explains how to test what previously seemed untestable: whether or not a quantum measurement causes an irreversible collapse. After explaining the novel ideas behind this experiment with a coin analogy, Maria shows you how to implement a simulation of it yourself using Qiskit.

Learn more at the Qiskit Blog: Blog post coming soon to   / qiskit  !

Find all the code in this Jupyter Notebook: https://github.com/maria-violaris/qua...

Watch the previous videos on Wigner's friend:
   • Wigner's Friend: The Measurement Prob...  

and Schrödinger's cat:
   • Schrödinger's Cat Explained with Quan...  

Relevant paper:
"Quantum Theory as a Universal Physical Theory", Section 8 "A Thought Experiment", David Deutsch (1985), https://boulderschool.yale.edu/sites/....
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New to qubits and quantum circuits? Check out the Understanding Quantum Information and Computation lecture series:    • Understanding Quantum Information and...  

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