National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
The role of non-Gaussian entanglement of continuous variable quantum states in quatum technologies
Matulík, Michal ; Marek, Petr (advisor) ; Cejnar, Pavel (referee)
We present an effort to find a measure of non-Gaussianity of non-Gaussian states. We compute the difference between the logarithmic negativities of a non-Gaussian state and its Gaussified form as a non-Gaussian entanglement resource. We use the latter to assess the resource content of non-Gaussianity of experimentally relevant state - two- mode squeezed vacuum with a subtracted photon. We also used symplectic analysis to discard the Gaussian entanglement. Therefore the measure is reduced to the logarithmic negativity of a non-Gaussian state only. We compare the measure with the Wigner distribution and its negativity and discuss the results. 1
Quantum entanglement
Matulík, Michal ; Cejnar, Pavel (advisor) ; Stránský, Pavel (referee)
We present overview of discussion among the greatest physicists from first half of last century. The discussion led to discovery of quantum entanglement. We build mathemat- ical formalism of quantum entanglement for bipartite systems. With that formalism we count quantum entanglement in system given by Lipkin Hamiltonian. We plot the results in graphs and we dicuss the results. 1

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5 Matulík, Martin
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