Data di Pubblicazione:
2014
Citazione:
Detecting quantum non-Gaussianity of noisy Schrödinger cat states / M.L. Palma, J. Stammers, M.G. Genoni, T. Tufarelli, S. Olivares, M.S. Kim, M.G.A. Paris. - In: PHYSICA SCRIPTA. - ISSN 0031-8949. - T160(2014 Apr 02), pp. 014035.1-014035.4. [10.1088/0031-8949/2014/T160/014035]
Abstract:
Highly quantum nonlinear interactions between different bosonic modes lead to the generation of quantum non-Gaussian states, i.e. states that cannot be written as mixtures of Gaussian states. A paradigmatic example is given by Schrödinger’s cat states, that is, coherent superpositions of coherent states with opposite amplitude. We here consider a novel quantum non-Gaussianity criterion recently proposed in the literature and prove its effectiveness on Schrödinger cat states evolving in a lossy bosonic channel. We prove that the quantum non-Gaussianity can be effectively detected for high values of losses and for large coherent amplitudes of the cat states.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
non-classical states, non-Gaussianity; quantum information; quantum optics
Elenco autori:
M.L. Palma, J. Stammers, M.G. Genoni, T. Tufarelli, S. Olivares, M.S. Kim, M.G.A. Paris
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