Cats and Quantum States

30 Cristian Bonato 2014
Image courtesy of Cristian Bonato, Delft University (NL)

The cats represent a quantum system that is measured with a certain strength, represented by shining light with corresponding intensity. As a consequence, the wavefunction of the cat probabilistically collapses to one of two possible states, corresponding to the cat with the head tilted to the right or to the left. In case we obtain the wrong outcome, a second measurement, with properly selected intensity, can be used to try to steer the cat wavefunction to the desired tilt angle.

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