Igor Radchenko: Relativistic quantum cryptography

Igor Radchenko, Russian Academy of Sciences

The development of open-space Quantum Key Distribution (QKD) systems is much limited by presence of high level fluctuating loss in a channel, while absence of truly single-photon sources to date. This restriction can be overcame by relativistic quantum cryptography - an approach witch takes into account principles of relativistic causality in addition to quantum world limitations which are commonly used in canonical quantum cryptography to prove the confidentiality of distributed keys. In the talk principles of relativistic quantum cryptography will be discussed and the example of experimental realization will be reported.