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7 papers · 2 filters
Practical continuous-variable quantum key distribution with composable security
Nitin Jain, Hou-Man Chin, Hossein Mani +10
A quantum key distribution (QKD) system must fulfill the requirement of universal composability to ensure that any cryptographic application (using the QKD system) is also secure.…
Linear programming bounds for quantum channels acting on quantum error-correcting codes
Yingkai Ouyang, Ching-Yi Lai
While quantum weight enumerators establish some of the best upper bounds on the minimum distance of quantum error-correcting codes, these bounds are not optimized to quantify the p…
Quantum key distribution with non-ideal heterodyne detection: composable security of discrete-modulation continuous-variable protocols
Cosmo Lupo, Yingkai Ouyang
Continuous-variable quantum key distribution exploits coherent measurements of the electromagnetic field, i.e., homodyne or heterodyne detection. The most advanced security proofs…
Quantum hypothesis testing for exoplanet detection
Zixin Huang, Cosmo Lupo
Detecting the faint emission of a secondary source in the proximity of the much brighter source has been the most severe obstacle for using direct imaging in searching for exoplane…
Resource-efficient energy test and parameter estimation in continuous-variable quantum key distribution
Cosmo Lupo
Symmetry plays a fundamental role in the security analysis of quantum key distribution (QKD). Here we review how symmetry is exploited in continuous-variable (CV) QKD to prove the…
Approaching the motional ground state of a 10 kg object
Chris Whittle, Evan D. Hall, Sheila Dwyer +197
The motion of a mechanical object -- even a human-sized object -- should be governed by the rules of quantum mechanics. Coaxing them into a quantum state is, however, difficult: th…