TY - JOUR
T1 - Cut-off rate analysis of practical quantum receivers
AU - Takeoka, Masahiro
AU - Tsujino, Kenji
AU - Sasaki, Masahide
PY - 2010/1
Y1 - 2010/1
N2 - Quantum communication with binary nonorthogonal pure states and single-shot measurements are discussed in terms of reliability function and cut-off rate. It is shown that some of different measurement strategies simultaneously attain the maximum single-shot cut-off rate. We also apply these measurements to the BPSK optical coherent states and compare them with the homodyne detection. Numerical results show that even including realistic imperfections, it is possible to exceed the homodyne limited cut-off rate.
AB - Quantum communication with binary nonorthogonal pure states and single-shot measurements are discussed in terms of reliability function and cut-off rate. It is shown that some of different measurement strategies simultaneously attain the maximum single-shot cut-off rate. We also apply these measurements to the BPSK optical coherent states and compare them with the homodyne detection. Numerical results show that even including realistic imperfections, it is possible to exceed the homodyne limited cut-off rate.
KW - BPSK coherent signal
KW - Cut-off rate
KW - Minimum error discrimination
KW - Reliability function
KW - Unambiguous state discrimination
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U2 - 10.1080/09500340903203103
DO - 10.1080/09500340903203103
M3 - Article
AN - SCOPUS:77951211560
SN - 0950-0340
VL - 57
SP - 207
EP - 212
JO - Journal of Modern Optics
JF - Journal of Modern Optics
IS - 3
ER -