Post communication data transmission by entangled photons having high data security

Akbar Rahmani Nejad; Ahmad Rahmani Nejad

doi:10.1117/12.2581766

8 November 2020 Post communication data transmission by entangled photons having high data security

Akbar Rahmani Nejad, Ahmad Rahmani Nejad

Proceedings Volume 11525, SPIE Future Sensing Technologies; 115252G (2020) https://doi.org/10.1117/12.2581766
Event: SPIE Future Sensing Technologies, 2020, Online Only

Abstract

Post communication modulation by implementation of polarization entangled photons, or post transmission communication is a novel method by in which raw data photons is transmitted to the receiver and transmitter from an entangled photon source through two distinct polarization maintaining optical fiber. A pair of photons is generated in entangled photons source, one of twin photons e.g. |V> is sent to the transmitter and its counterpart e.g. |H> is sent to the receiver through the two links of polarization-maintaining optical fibers, having exactly the same length to guarantee reaching of photons to transmitter and receiver exactly at the same time. When one of entangled photons is ready to be polarization modulated in the transmitter, its twin photon is ready in the receiver to be read. We know the polarization of each one of twin entangled photons transmitted to receiver and transmitter, because the polarization is maintained through the fiber and by tuning and checking some photons in receiver and transmitter we can find the normal incidence polarization. When polarization of one of the photons in the transmitter is changed, this causes changing of photon counterpart in the receiver at zero-time delay. This makes zero-time communication possible ignoring transmission delay of optical fiber classical link. On the other hand, entangled photon enhancer is proposed here, because due to no-cloning theorem, it is impossible to use optical amplifier to amplify entangled photons.

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Akbar Rahmani Nejad and Ahmad Rahmani Nejad "Post communication data transmission by entangled photons having high data security", Proc. SPIE 11525, SPIE Future Sensing Technologies, 115252G (8 November 2020); https://doi.org/10.1117/12.2581766

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KEYWORDS

Photons

Data communications

Receivers

Polarization

Transmitters

Computer security

Data transmission

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