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Sandro Donadi [3]S. Donadi [1]
  1.  31
    Spontaneously Emitted X-Rays: An Experimental Signature of the Dynamical Reduction Models.C. Curceanu, S. Bartalucci, A. Bassi, M. Bazzi, S. Bertolucci, C. Berucci, A. M. Bragadireanu, M. Cargnelli, A. Clozza, L. De Paolis, S. Di Matteo, S. Donadi, A. D’Uffizi, J. -P. Egger, C. Guaraldo, M. Iliescu, T. Ishiwatari, M. Laubenstein, J. Marton, E. Milotti, A. Pichler, D. Pietreanu, K. Piscicchia, T. Ponta, E. Sbardella, A. Scordo, H. Shi, D. L. Sirghi, F. Sirghi, L. Sperandio, O. Vazquez Doce & J. Zmeskal - 2016 - Foundations of Physics 46 (3):263-268.
    We present the idea of searching for X-rays as a signature of the mechanism inducing the spontaneous collapse of the wave function. Such a signal is predicted by the continuous spontaneous localization theories, which are solving the “measurement problem” by modifying the Schrödinger equation. We will show some encouraging preliminary results and discuss future plans and strategy.
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  2.  15
    A Comparison Between Models of Gravity Induced Decoherence.Sayantani Bera, Sandro Donadi, Kinjalk Lochan & Tejinder P. Singh - 2015 - Foundations of Physics 45 (12):1537-1560.
    It has been suggested in the literature that spatial coherence of the wave function can be dynamically suppressed by fluctuations in the spacetime geometry. These fluctuations represent the minimal uncertainty that is present when one probes spacetime geometry with a quantum probe. Two similar models have been proposed, one by Diósi and one by Karolyhazy and collaborators, based on apparently unrelated minimal spacetime bounds. The two models arrive at somewhat different expressions for the dependence of the localization coherence length on (...)
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  3.  31
    Are Collapse Models Testable Via Flavor Oscillations?Sandro Donadi, Angelo Bassi, Catalina Curceanu, Antonio Di Domenico & Beatrix C. Hiesmayr - 2013 - Foundations of Physics 43 (7):813-844.
    Collapse models predict the spontaneous collapse of the wave function, in order to avoid the emergence of macroscopic superpositions. In their mass-dependent formulation, they claim that the collapse of any system’s wave function depends on its mass. Neutral K, D, B mesons are oscillating systems that are given by Nature as superposition of two distinct mass eigenstates. Thus they are unique laboratory for testing collapse models that are sensitive to the mass. In this paper we derive—for the single mesons and (...)
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  4.  28
    The Effect of Spontaneous Collapses on Neutrino Oscillations.Sandro Donadi, Angelo Bassi, Luca Ferialdi & Catalina Curceanu - 2013 - Foundations of Physics 43 (9):1066-1089.
    We compute the effect of collapse models on neutrino oscillations. The effect of the collapse is to modify the evolution of the spatial part of the wave function and we will show that this indirectly amounts to a change on the flavor components. For the analysis we use the mass proportional CSL model, and perform the calculation to second order perturbation theory. As we will show, the CSL effect is very small—mainly due to the very small mass of neutrinos—and practically (...)
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