Optimizing quantum key distribution protocols using decoy state techniques and experimental validation

HIGHLIGHTS

• What: The aim of this protocol is to determine the lower bounds for the single-photon Q1 and two-photon gain Q2 and the upper bounds for the single-photon e1 and two-photon e2 Quantum Bit Error Rate (QBER). This analysis evaluates the gains obtained from the signal and decoy states ( Q̂0, Q̂, Q̂1, Q̂ 2 ) as well as the overall QBERs associated with those states     Eˆ   E  1    N E     ( Ê, Ê 1, Ê 2 ). The decoy state mechanism employed in this study aims to simulate the functionality of an optical fiber-based . . .
  

   

  

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