Secret key can be obtained from both compatible and incompatible measurements in the six-state QKD protocol

摘要

We give an example of a quantum channel over which the six-state quantum key distribution protocol allows the legitimate users to obtain the secret key from both compatible and incompatible measurement outcomes.%6状態量子鍵配送プロトコルにおいて送信基底と測定基底が同じ測定と異なる測定で得られる測定結果の両方から秘密鍵を取り出すことができる量子通信路の例を示す.