Contribution List

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  1. Dr Angelo Bassi (University of Trieste and INFN)
    19/12/2016, 11:30
    I will present the basic features of the GRW model of spontaneous wave function collapse: the collapse of the wave function, the amplification mechanism, which states are affected by it. Eventually, the picture which emerges is that of a unified description of microscopic (quantum) and macroscopic (classical) systems, in terms of a wave function evolving according to a modified Schrödinger...
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  2. Dr Matteo Morganti (University of Rome TRE)
    19/12/2016, 12:30
    In this talk I will present some of the considerations that philosophers make concerning the identity and individuality of material objects, and discuss the way in which the peculiar features of (non-relativistic) quantum entities can be brought to bear on these issues. In particular, I will look at the 'Received View' that quantum particles are non-individuals, and at possible alternatives....
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  3. Prof. Giacomo D'Ariano (PV)
    19/12/2016, 14:46
    Free Quantum Field Theory (QFT) can be derived without quantization rules as a quantum ab initio theory of numerable systems, with general assumptions as homogeneity, isotropy, locality and linearity of the interactions. What follows is a theory of quantum walks on the Cayley graph of a group G. Virtually abelian G corresponds to QFT in Euclidean space, whereas relaxing linearity leads to...
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  4. Dr Catalina Oana Curceanu (LNF)
    19/12/2016, 16:15
  5. Prof. Alexander Dolgov (FE)
    20/12/2016, 09:01
    A possibility that the spin-statistics theorem is broken in neutrino hysics is discussed. The impact of such violation on double beta decay, big bang nucleosynthesis, and the cosmological dark matter problems are considered. A possible transition of the statistics breaking from the neutrino sector to other particles is estimated.
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  6. Giacomo Guarnieri (MI)
    20/12/2016, 10:00
    "We characterize the time behavior of the energy exchange between an open quantum system and its environment in a non-Markovian dynamical regime using the full counting statistics formalism. In particular we focus on the occurrence of energy backflow from environment to system, to which we introduce a suitable condition and measure. We study in detail this quantifier in two paradigmatic...
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  7. Giulio Amato
    20/12/2016, 10:15
    It is well known that a closed and isolated quantum system evolves through unitary transformations. When a quantum system of interest is not closed and isolated, but interacts with other degrees of freedom (the environment), we refer to it as an open quantum systems: in general its evolution is non unitary because of the coupling with external degrees of freedom. The mathematical...
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  8. Mr Aniello Lampo (ICFO)
    20/12/2016, 10:30
    We re-analyse the optomechanical interferometer experiment proposed by Marshall, Simon, Penrose and Bouwmeester with the help of a recently developed quantum-classical hybrid theory. This leads to an alternative evaluation of the mirror induced decoherence. Surprisingly, we nd that it behaves essentially in the same way for suitable initial conditions and experimentally relevant...
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  9. Mr Davide Romano (University of Lausanne)
    20/12/2016, 10:45
    I want to present a general scheme for the classical limit within the framework of Bohmian mechanics (BM). The choice of BM follows from the following consideration: classical mechanics (CM) has a realistic and objective ontology, that is, particles that follow Newtonian trajectories in 3D space. In order to recover CM, it seems therefore preferable to start with a quantum theory that is...
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  10. Edoardo Milotti (TS)
    20/12/2016, 11:30
    : The Pauli Exclusion Principle has a surprisingly rigid structure within the theoretical framework of modern physics. This rigidity leads to difficulties in formulating a comprehensive theory of possible violations, and also to many problems in setting up experiments and in the interpretation of their results. In this seminar, I shall review both kinds of difficulties, and I shall sketch...
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  11. Dr Johann Marton (Stefan Meyer Institute)
    20/12/2016, 12:30
    The spin-statistics theorem is a pillar of quantum theory and together with CPT symmetry it is fundamental for the relativistic quantum field theory. Up-to now no violations of spin statistics and CPT were found. Nevertheless, experimental attempts were and are performed to proof or falsify these concepts with experiments at extremely high sensitivity. This lecture will discuss the spin...
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  12. Dr Beatrix Hiesmayr (University of Vienna)
    20/12/2016, 14:46
    Quantum theory is a very successful theory since no experiments are in contradiction with its predictions. I will discuss some main principles of quantum theory and discuss how they can be questioned very deeply, both from the theoretical and experimental point of view
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  13. Prof. Hans-Thomas Elze (Univesita di Pisa)
    21/12/2016, 09:01
    : I will begin by recalling how I met the late Nikola Buric and how our friendship developed in a short time. Motivated by quite different interests in the transition between quantum and classical mechanics, at first, we both were studying possibilities for a theory of quantum-classical hybrid systems, which became the focus of our discussions. - This has recently led me to explore cellular...
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  14. Dr Sergio Di Matteo (Institute de Physique de Rennes - IPR)
    21/12/2016, 10:00
    Abstract: We describe how the energy shift for the Pauli-forbidden X-ray transitions is calculated within the Dirac-Fock theory. We start from the general expression for the cross-section of usual, Pauli-allowed, X-ray transitions and then explain what changes should be considered in the Pauli-forbidden case. The specific cases of copper (the material of choice for VIP experiment), lead and...
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  15. Mr Kristian Piscicchia (LNF)
    21/12/2016, 11:30