4 papers · 1 filter
Nullifiers of non-Gaussian cluster states through homodyne measurement
Vojtěch Kala, Casper A. Breum, Mikkel V. Larsen +4
In continuous variable optical platforms, large-scale Gaussian cluster states have already been demonstrated, but non-Gaussian resources are essential to achieve universality and f…
Generalized squeezing as a witness
Šimon Bräuer, Tomáš Opatrný, Petr Marek
Quantum systems can be prepared in an infinite continuum of states, but only some of them can be used as resources for quantum technologies. Discerning whether a specific quantum s…
Genuine Continuous Quantumness
Vojtěch Kala, Jiří Fadrný, Michal Neset +3
Randomness is a key feature of quantum physics. Heisenberg's uncertainty principle reveals the existence of an intrinsic noise, usually explored through Gaussian squeezed states. D…
Nonlinear squeezing generation via multimode PDC and single photon measurement
Vojtěch Kala, Denis Kopylov, Petr Marek +1
Nonlinear squeezing is a property of non-Gaussian states of light with an important application in continuous variable quantum computing. We study the generation of nonlinear squee…