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(a) Schematic diagram of Protocol I. (b) Equivalent view of Protocol I, where the X-basis measurement on A or B is realized by a Hadamard gate followed by the Z-basis measurement.
Source publication
Quantum key distribution allows remote parties to generate information-theoretic secure keys. The bottleneck throttling its real-life applications lies in the limited communication distance and key generation speed, due to the fact that the information carrier can be easily lost in the channel. For all the current implementations, the key rate is b...
Contexts in source publication
Context 1
... first introduce an entanglement-based PM-QKD protocol, called Protocol I, as shown in Fig. ...
Context 2
... First consider the case when ρ is a Fock state, |k C , defined in Eq. (A1). After passing through the BS, as shown in Fig. 4, the state on modes A and B ...
Context 3
... shown in Fig. 4(b), the X-basis measurement on A or B is realized by a Hadamard gate followed by the Z-basis measurement. Denote the state after local Hadamard gates as ...
Context 4
... first introduce an entanglement-based PM-QKD protocol, called Protocol I, as shown in Fig. ...
Context 5
... First consider the case when ρ is a Fock state |k C , defined in Eq. (A1). After passing through the BS, as shown in Fig. 4, the state on modes A and B ...
Context 6
... shown in Fig. 4(b), the X-basis measurement on A or B is realized by a Hadamard gate followed by the Z-basis measurement. Denote the state after local Hadamard gates as |Ψ In other words, the X-error rate e X k can be under- stood as the error rate by performing the Z-basis mea- surement on the state of |Ψ ...
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