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Quantum key distribution(QKD) is an important area in quantum informationtheory. Nowadays, there are many protocols such as BB84 protocol, Lo-Chau'sprotocol and GR10 protocol. They usually require legitimated parties have theability to create particles, using a sifting procedures (BB84, GR10), or mustdestroy entangled states (Lo-Chau). In this paper, we give a QKD scheme whichcan recycle entangled states and need not to run sifting procedures. Theprotocol use teleportation and mutual unbiased bases of qudits. Moreover, Thescheme can be modified to add a third party who assumes all the states creatingprocedures and so the communicated parties need not to create states. This isin fact an entanglement distribution protocol. Also, the protocol can bemodified for distributing key over arbitrary long distance. We compare ourprotocol with the previous protocols and discuss the security of it bycorresponding to BB84 protocol.

Entanglement recycled quantum key distribution scheme without sifting over arbitrary long distance