Sending-or-not-sending twin-field quantum key distribution with redundant space
We propose to adopt redundant space such as polarization rubbermaid 8 gallon trash can mode in the sending-or-not-sending twin-field quantum key distribution (TF-QKD) in the Fock space.With the help of redundant space such as photon polarization, we can postselect events according to the outcome of the observation to the additional 3 piece horse wa