Bell state

The Bell states are a concept in quantum information science and represent the most simple examples of entanglement. They are named after John S. Bell because they are the subject of his famous Bell inequality. An EPR pair is a pair of qubits (or quantum bits) which are in a Bell state together, that is, entangled with each other. Unlike classical phenomena such as the nuclear, electromagnetic, and gravitational fields, entanglement is invariant under distance of separation and is not subject to relativistic limitations such as the speed of light (though the no-communication theorem prevents this behaviour being used to transmit information faster than light, which would violate causality).

单词	Bell state
释义	Bell state 英语百科 Bell state The Bell states are a concept in quantum information science and represent the most simple examples of entanglement. They are named after John S. Bell because they are the subject of his famous Bell inequality. An EPR pair is a pair of qubits (or quantum bits) which are in a Bell state together, that is, entangled with each other. Unlike classical phenomena such as the nuclear, electromagnetic, and gravitational fields, entanglement is invariant under distance of separation and is not subject to relativistic limitations such as the speed of light (though the no-communication theorem prevents this behaviour being used to transmit information faster than light, which would violate causality).
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