Category:Prepare and Measure Network Stage: Difference between revisions
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The second network stage offers end-to-end connection between nodes. Any node here is allowed to prepare one qubit state and transmit the resulting state to any other node, which then can receive and measure it. In this case, the other node can either measure the qubit or conclude that it is lost. </br> | |||
here is allowed to prepare one qubit state and transmit the resulting state to | |||
any other node, which then | Transmissions and measurements can be [https://en.wikipedia.org/wiki/Postselection post-selected], a signal that the qubit is lost may be generated instead. For instance, the receiving node is allowed to ignore non-detection events and conclude that such qubits are lost. If the sender can prepare an entangled state of two qubits then this stage also includes the case in which the sender can prepare an entangled state and send the two entangled qubits to two different nodes in the network. This entanglement distribution is also post-selected. However this post selected prepare and measure functionality is not equivalent to transmitting arbitrary qubits over the network. | ||
node can either measure the qubit or conclude that it is lost. Transmissions | ==Applications== | ||
and measurements can be post-selected, a signal that the qubit is lost may | This stage allows tasks like [[Quantum Key Distribution|QKD]]. Another class of protocols in this stage is in the domain of two-party cryptography. Here, there is no eavesdropper, but rather Alice and Bob themselves do not trust each other. | ||
be generated instead. For instance, the receiving node is allowed to ignore | ==Relevant Parameters== | ||
non-detection events and conclude that such qubits are lost. | |||
If the sender can prepare an entangled state of two qubits then this stage | |||
also includes the case in which the sender can prepare an entangled state and | |||
send the two entangled qubits to two | |||
entanglement distribution is also post-selected. However this post selected | |||
prepare and measure functionality is not equivalent to transmitting arbitrary | |||
qubits over the network. | |||
Applications | |||
This stage allows tasks like QKD | |||
Another class of protocols in this stage is in the domain of two-party | |||
do not trust each other | |||
[[Category:Network Stages]] | [[Category:Network Stages]] |
Revision as of 01:10, 11 July 2019
The second network stage offers end-to-end connection between nodes. Any node here is allowed to prepare one qubit state and transmit the resulting state to any other node, which then can receive and measure it. In this case, the other node can either measure the qubit or conclude that it is lost.
Transmissions and measurements can be post-selected, a signal that the qubit is lost may be generated instead. For instance, the receiving node is allowed to ignore non-detection events and conclude that such qubits are lost. If the sender can prepare an entangled state of two qubits then this stage also includes the case in which the sender can prepare an entangled state and send the two entangled qubits to two different nodes in the network. This entanglement distribution is also post-selected. However this post selected prepare and measure functionality is not equivalent to transmitting arbitrary qubits over the network.
Applications
This stage allows tasks like QKD. Another class of protocols in this stage is in the domain of two-party cryptography. Here, there is no eavesdropper, but rather Alice and Bob themselves do not trust each other.
Relevant Parameters
Pages in category "Prepare and Measure Network Stage"
The following 8 pages are in this category, out of 8 total.