TY - JOUR
T1 - Quantum cryptography based on orthogonal states
AU - Goldenberg, Lior
AU - Vaidman, Lev
PY - 1995
Y1 - 1995
N2 - All existing quantum cryptosystems use nonorthogonal states as the carriers of information. Nonorthogonal states cannot be cloned (duplicated) by an eavesdropper. As a result, any eavesdropping attempt must introduce errors in the transmission, and, therefore, can be detected by the legal users of the communication channel. Orthogonal states are not used in quantum cryptography, since they can be faithfully cloned without altering the transmitted data. We present a cryptographic scheme based on orthogonal states, which also assures the detection of any eavesdropper.
AB - All existing quantum cryptosystems use nonorthogonal states as the carriers of information. Nonorthogonal states cannot be cloned (duplicated) by an eavesdropper. As a result, any eavesdropping attempt must introduce errors in the transmission, and, therefore, can be detected by the legal users of the communication channel. Orthogonal states are not used in quantum cryptography, since they can be faithfully cloned without altering the transmitted data. We present a cryptographic scheme based on orthogonal states, which also assures the detection of any eavesdropper.
UR - http://www.scopus.com/inward/record.url?scp=0000004338&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.75.1239
DO - 10.1103/PhysRevLett.75.1239
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AN - SCOPUS:0000004338
VL - 75
SP - 1239
EP - 1243
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 7
ER -