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pro vyhledávání: '"Ventriglia F"'
The quantum-to-classical transition is considered from the point of view of contractions of associative algebras. Various methods and ideas to deal with contractions of associative algebras are discussed that account for a large family of examples. A
Externí odkaz:
http://arxiv.org/abs/1603.01108
Publikováno v:
Phys. Scripta, 90, 074031 (17 pp) (2015)
A sample of some relevant developments that have taken place during the last twenty years in classical and quantum tomography are displayed. We will present a general conceptual framework that provides a simple unifying mathematical picture for all o
Externí odkaz:
http://arxiv.org/abs/1510.08140
Stochastic matrices and positive maps in matrix algebras proved to be very important tools for analysing classical and quantum systems. In particular they represent a natural set of transformations for classical and quantum states, respectively. Here
Externí odkaz:
http://arxiv.org/abs/1504.05221
Publikováno v:
Phys. Scr. 87, 045015 (2013)
Quantum dynamics of the density operator in the framework of a single probability vector is analyzed. In this framework quantum states define a proper convex quantum subset in an appropriate simplex. It is showed that the corresponding dynamical map
Externí odkaz:
http://arxiv.org/abs/1302.1330
The quantizer-dequantizer method allows to construct associative products on any measure space. Here we consider an inverse problem: given an associative product is it possible to realize it within the quantizer-dequantizer framework? The answer is p
Externí odkaz:
http://arxiv.org/abs/1301.3694
Autor:
Ciaglia, F.M., Di Cosmo, F., Figueroa, A., Man’ko, V.I., Marmo, G., Schiavone, L., Ventriglia, F., Vitale, P.
Publikováno v:
In Annals of Physics December 2019 411
Publikováno v:
In Annals of Physics January 2019 400:221-245
Publikováno v:
Phys. Scr., 84 (2011) 065006
It is now well established that quantum tomography provides an alternative picture of quantum mechanics. It is common to introduce tomographic concepts starting with the Schrodinger-Dirac picture of quantum mechanics on Hilbert spaces. In this pictur
Externí odkaz:
http://arxiv.org/abs/1204.5231
Autor:
Ibort, A., Lopez-Yela, A., Man'ko, V. I., Marmo, G., Simoni, A., Sudarshan, E. C. G., Ventriglia, F.
After a general description of the tomographic picture for classical systems, a tomographic description of free classical scalar fields is proposed both in a finite cavity and the continuum. The tomographic description is constructed in analogy with
Externí odkaz:
http://arxiv.org/abs/1202.3275
The experimental check of two--mode Robertson uncertainty relations and inequalities for highest quadrature moments is suggested by using homodyne photon detection. The relation between optical tomograms and symplectic tomograms is used to connect th
Externí odkaz:
http://arxiv.org/abs/1202.0434