TY - RPRT TI - Unconditionally secure key distribution based on two nonorthogonal states. AU - Kiyoshi Tamaki AU - Masato Koashi AU - Nobuyuki Imoto PY - 2003 DO - 10.1103/physrevlett.90.167904 UR - https://pubmed.ncbi.nlm.nih.gov/12732012/ ID - 12732012 ER -