Browsing by Author "Naing, Thant Zin"

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    Non-conformal fluctuations in radiation dominated anisotropic cosmology
    (Indian Academy of Sciences, 1999-03-02) Naing, Thant Zin; Narlikar, J. V.
    Using simple path integral, Feynman propagator method and the relation between conformal time η and scale factor Ƭ, we investigate the non-conformal quantum fluctuations (of expansion and shear) and axisymmetric singularity case in radiation dominated anisotropic cosmology. We show that near the classical singularity the quantum fluctuations tend to diverge.
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    Quantum fluctuations in radiation dominated anisotropic cosmology
    (Indian Academy of Sciences, 1999-02-20) Naing, Thant Zin; Narlikar, J. V.
    Using the metric conformal transformation and simple path integral, Feynman propagator method, for computing its quantum fluctuations, we analyse the radiation dominated anisotropic Bianchi Type I cosmology. We proceed to show that the quantum conformal fluctuations diverge at the classical spacetime singularity, suggesting that a singularity free solution can exist in anisotropic cosmology in the quantum regime.