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- W3092111012 abstract "In this paper, by the use of entangled and nonentangled coherent and squeezed state formalism of two-mode nonclassical states, we studied the chaotic inflationary model of a massive scalar field with quadratic potential in the semiclassical gravity, derived from canonical quantum gravity. It was found that the semiclassical quantum gravity leads to the same power-law expansion of the universe as that of the matter-dominated era [Formula: see text] in an oscillatory phase of the scalar field in all the nonclassical quantum states considered. The coherently oscillating scalar field in the expanding universe suffers from the phenomenon of particle creation which restricts the duration of stable coherent oscillations of the scalar field dependent on the parameters of the states considered and affect in a certain way the abundant particle production owing to the parametric resonance of bosonic fields coupled to this coherently oscillating scalar field." @default.
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- W3092111012 date "2020-12-01" @default.
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- W3092111012 title "Quantum fluctuations and cosmological particle creation from oscillating massive scalar field in two-mode quantum optical states" @default.
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- W3092111012 doi "https://doi.org/10.1142/s0218271820501199" @default.
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