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Both states are NOT present. There is only one cat with only one sex. That much is already determined. Similar with a photon. When it is emitted its destination could be anywhere in the universe. You could say that the whole universe rings like a bell till it arrives. However it is one photon and will have one destination.

Most of us have heard of Shrodinger's famous cat, who, using the principle of quantum mechanics, can be both dead and alive at the same time. This leads to the following interesting question: Suppose we know that Shroedinger's cat is living, but neglected to measure his/her sex. So the cat sits in the closed box in the state (|male> + |female>)/√2 .

What if instead of a cat we have a particle. The type of particle could be matter or antimatter. What is the probability of annihilation products escaping from the box?What would this tell us about how the vacuum interacts with mass?