A New Quantum key Distribution Protocol

A new quantum key distribution protocol is proposed. The suggested protocol has two advantages. First: whenever an eavesdropper is present, the error rate increases obviously. Second, the eavesdropper can get only 2/n from the total information for an arbitrary n. Hence, eavesdropper has less information and can be detected easier. Moreover, the new protocol effectiveness is discussed and shown to be essentially higher than those of the other known protocols.