56 research outputs found

    Quantum Mechanical Propagators in Terms of Hida Distributions

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    We review some basic notions and results of White Noise Analysis that are used in the construction of the Feynman integrand as a generalized White Noise functional. After sketching this construction for a large class of potentials we show that the resulting Feynman integrals solve the Schroedinger equation

    Self-avoiding fractional Brownian motion - The Edwards model

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    In this work we extend Varadhan's construction of the Edwards polymer model to the case of fractional Brownian motions in Rd\R^d, for any dimension d2d\geq 2, with arbitrary Hurst parameters H1/dH\leq 1/d.Comment: 14 page

    Integral Representation of Generalized Grey Brownian Motion

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    In this paper we investigate the representation of a class of non Gaussian processes, namely generalized grey Brownian motion, in terms of a weighted integral of a stochastic process which is a solution of a certain stochastic differential equation. In particular the underlying process can be seen as a non Gaussian extension of the Ornstein-Uhlenbeck process, hence generalizing the representation results of Muravlev as well as Harms and Stefanovits to the non Gaussian case.Comment: arXiv admin note: text overlap with arXiv:1708.06784, arXiv:1807.0786
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