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Seminar of the LHEP (MIPT) theory group
April 12, 2023 14:00–16:00, Dolgoprudny, MIPT, Laboratory building, room 403
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The semiclassical stochastic wave function of the Universe in the third quantization formalism
Pavel Ivanov P. N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow
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Abstract:
We will show, within the framework of a simple model of a closed homogeneous and isotropic Universe containing a lambda term and a set of massless scalar fields, how quantized solutions of the Wheeler-DeWitt equation describing the wave functions of this model acquire the features of a random classical field at large values of the scale factor. The unexpected connection of the obtained solution with the well-known proposal of Hartle and Hawking for the choice of the wave function of the Universe will also be discussed.
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