is an experiment similar to Schrödinger's Cat and truth is conceived as a method to determine experimentally whether an alleged cat in the box or is alive or dead, or is in a superposed state of both. As will be seen no cat and not infringe the rights of animals, which is a source of great satisfaction.
A plutonium atom inside a shell, the atom has a probability of decay in a given period of time. Depending on whether the atom decays or not the following will happen:
- If the atom decays, then the door B is closed and the door to open. If the atom
- does not decay, then the door A door closed and B open.
In the Middle of the box is a source that continuously emits electrons, the electrons may pass through the doors is proudly if A and B, and then be registered on the screen P. The diagram of the impact sites of each electron in P is stored in an internal register. All the housing is closed for a period, after which it opens and enter the registry of the impacts of each electron.
PURPOSE OF EXPERIMENT
It is about to observe experimentally the resulting diagram once the box has been opened and has accessed the record. Will the doors half open and half closed, and there will be diffraction pattern with interference, or does not have the diffraction diagram?. The implications of either outcome are different and interesting.
theoretical solution
In principle, the diagram on the screen will show the module to the square of the sum of the wave amplitudes for all possible states of the system. Recalling the notation of Dirac:
But now scientist whatever happens inside the atom, will always find that one door was closed and therefore the diagram on the screen is either:
O While
In no case matches what scientist find out when you open the box. 
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