Overcoming unambiguous state discrimination attack with the help of Schrödinger Cat decoy states

@article{Gaidash2018OvercomingUS,
  title={Overcoming unambiguous state discrimination attack with the help of Schr{\"o}dinger Cat decoy states},
  author={Andrei Gaidash and Anton Kozubov and George Miroshnichenko},
  journal={ArXiv},
  year={2018},
  volume={abs/1808.08145}
}
  • Andrei Gaidash, Anton Kozubov, George Miroshnichenko
  • Published 2018
  • Mathematics, Physics, Computer Science
  • ArXiv
  • In this work we propose the technique for phase-coded weak coherent states protocols utilizing two signal states and one decoy state which is found as linear combination of signal states (Schr\"odinger Cat states); the latter allows to overcome the USD attack. For instance, Schr\"odinger Cat states can be considered as even coherent states. Moreover we consider decoy states implementation based on squeezed vacuum states which might not disables USD completely yet produces discrimination… CONTINUE READING

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