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Multipartite Entanglement Verification: Difference between revisions
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Multipartite Entanglement Verification (edit)
Revision as of 10:14, 21 January 2020
, 21 January 2020→Outline
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==Outline== | ==Outline== | ||
This protocol is based on the work in [https://www.nature.com/articles/ncomms13251 W. McCutcheon, A. Pappa et al.]. The goal is for a specific party called the Verifier to check whether the source has shared a GHZ-state among the n-nodes network. It goes as follow: | This protocol is based on the work in [https://www.nature.com/articles/ncomms13251 W. McCutcheon, A. Pappa et al.]. The goal is for a specific party called the [[Verifier]] to check whether the source has shared a GHZ-state among the n-nodes network. It goes as follow: | ||
* '''Sharing phase:''' The source creates and shares an n-qubits quantum state to all the parties using a state generation resource and quantum channels. | * '''Sharing phase:''' The source creates and shares an n-qubits quantum state to all the parties using a state generation resource and quantum channels. | ||
* '''Verification phase:''' The verifier sends angles to each party that corresponds to measurement basis, using classical authenticated channels | * '''Verification phase:''' 1.The verifier sends angles to each party that corresponds to measurement basis, using classical authenticated channels | ||
2. Each party, including the verifier, measures its qubits in the basis indicated by the received angle. | |||
3. It then sends its outcome to the verifier. | |||
4. The verifier checks the parity of the outcomes and broadcast if the shared state was a GHZ state. | |||
==Notation== | ==Notation== | ||