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Quantum Teleportation: Difference between revisions
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(Created page with "Quantum teleportation is a protocol by which a quantum state (or information stored in a quantum state) can be transmitted physically from one location (or one party) to anoth...") |
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* Using the classical channel, the two bits are sent from Sender to Receiver. | * Using the classical channel, the two bits are sent from Sender to Receiver. | ||
* As a result of the measurement performed at Sender's location, the EPR pair qubit at Receiver's location is in one of four possible states. Of these four possible states, one is identical to the original quantum state, and the other three are closely related. Which of these four possibilities actually obtained, is encoded in the two classical bits. Knowing this, the EPR pair qubit at Receiver's location is modified by local unitary operations that the Receiver performs on his state. And the result will be the original qubit. | * As a result of the measurement performed at Sender's location, the EPR pair qubit at Receiver's location is in one of four possible states. Of these four possible states, one is identical to the original quantum state, and the other three are closely related. Which of these four possibilities actually obtained, is encoded in the two classical bits. Knowing this, the EPR pair qubit at Receiver's location is modified by local unitary operations that the Receiver performs on his state. And the result will be the original qubit. | ||
==Notations== | |||
* <math>|\psi\rangle_O:</math> The unknown original state to be teleported from Sender to Receiver | |||
* <math>|\Phi^+\rangle_{AB}:</math> The EPR pair (or Bell state) shared between two parties | |||
* Bell States(<math>|\Phi^+\rangle</math>, <math>|\Phi^-\rangle</math>, <math>|\Psi^+\rangle</math> and <math>|\Psi^-\rangle</math>): Set of orthonormal two-qubit states having the maximum amount of entanglement. These states can be used as a basis for a two-qubit quantum system. | |||
* <math>I:</math> The identity operator | |||
*<math>X,Y,Z:</math> The [[Pauli Operators]] | |||