Resistent gegen Impuls-Timing-Angriffe Qkd-Empfänger und Qkd-System damit

Details

Veröffentlichungs-Nr.

EP4765722

Anmeldetag

20. Dezember 2024

Veröffentlichung

24. Juni 2026

Rechtsraum

EP

IPC

H04L9/08

Abstract

The present invention relates to a quantum key distribution receiver comprising a unique single detector adapted to detect qubits composed of low power optical pulses in specified time-bins, A being the Advanced time-bin and D being the Delayed time-bin, an interferometer with two unequal arms, one short arm (S) and one long arm (L) adapted to create an interference between the two successive time-bins A and D so as to create three time bins AS, AL&DS, DL, characterized in that said receiver is adapted to control the single detector so as to work in a gated mode, where he chooses when the detector is active and when it is not and to choose in which basis he will measure, such that for each qubit received and interfered by said interferometer, said receiver is adapted to activate its single detector for the DL and AS bins to measure in the Z basis, or to activate it for the AL&DS bin to measure in the X basis.

Anmelder

Firma

ID Quantique S.A.

Land

🇨🇭 Schweiz

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