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For questions about the principle and application of quantum entanglement. It is a physical phenomenon which occurs when pairs or groups of particles are generated, interact, or share spatial proximity in ways such that the quantum state of each particle cannot be described independently of the state of the other(s), even when the particles are separated by a large distance—instead, a quantum state must be described for the system as a whole. (Wikipedia)

1 vote
1 answer
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Threshold quantum gate

I would like to know if it is possible to construct a set of quantum gates to do the following: Start with a set of N qubits representing a number expressed in binary notation. The values in the vari …
S. McGrew's user avatar
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3 votes
1 answer
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What does a quantum NOT operation do to an entangled set of qubits?

Quantum computing is not my field, so answers understandable to a layman will be most useful. Please forgive any incorrect terminology in my question! Assume that a set of the states of N qubits exis …
S. McGrew's user avatar
  • 245