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Frequency-Resolved Simulations of Highly Entangled Biphoton States: Beyond the Single-Pair Approximation. II. Application to Entanglement-based Quantum Key Distribution
Philipp Kleinpaß, Thomas Walther, Erik Fitzke
We present time- and frequency-resolved simulations of quantum key distribution~(QKD) systems employing highly entangled biphoton quantum states. Our simulations are based on expan…
Frequency-Resolved Simulations of Highly Entangled Biphoton States: Beyond the Single-Pair Approximation. I. Theory
Philipp Kleinpaß, Thomas Walther, Erik Fitzke
We discuss an expansion of the detection probabilities of biphoton states in terms of increasing orders of the joint spectral amplitude. The expansion enables efficient time- or fr…
Simulation of satellite and optical link dynamics in a quantum repeater constellation
Jaspar Meister, Philipp Kleinpaß, Davide Orsucci
Quantum repeaters and satellite-based optical links are complementary technological approaches to overcome the exponential photon loss in optical fibers and thus allow quantum comm…
Assessment of practical satellite quantum key distribution architectures for current and near-future missions
Davide Orsucci, Philipp Kleinpaß, Jaspar Meister +5
Quantum key distribution (QKD) allows the generation of cryptographic keys beyond the computational hardness paradigm and is befitting for secure data transmission requiring long-t…