Roberto G. Pousa

TL;DR: This work provides a systematic analysis of the finite block size effects on secret key length generation for low latency operation using BB84 weak coherent pulse decoy state protocols and finds that optimisation of basis bias, pulse probabilities and intensities, and data selection is crucial for extending the range of satellite trajectories and link efficiencies for which finite-block size keys can be extracted.

TL;DR: In this paper , the effects of link efficiency, background light, source quality, and overpass geometries to estimate long-term key generation capacity in a trusted-node downlink system were investigated.

TL;DR: In this paper , a satellite-to-ground quantum channel was modeled for different quantum light sources to identify the optimal wavelength for free-space QKD in ambient conditions. And a true single photon source based on a color center in hexagonal boron nitride coupled to a microresonator was proposed.

TL;DR: In this paper , the authors showed that the commonly used finite-key analysis for non-decoy state QKD drastically overestimates secure key acquisition times due to overly loose bounds on statistical fluctuations.

TL;DR: The Responsive Operations for Key Services (ROKS) mission as mentioned in this paper is the first to send a QKD payload on a CubeSat into low Earth orbit, demonstrating the capabilities of newly developed modular quantum technologies.