Research Publications
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Item White holes : to be or not be?(1978-07) Narlikar, J. V.Item Yuddha ani samrakahan : shambhar varshanantar(Dharmabhaskar, 1977-07-21) Narlikar, J. V.Item Ganitatil gamati - jamati V(1977-03-02) Narlikar, J. V.Item Action at a distance electromagnetism(Science today, 1974-01-01) Narlikar, J. V.Item cosmology then and now(Overseas hindustan times, 1976-02-10) Narlikar, J. V.Item Arrow of time(Science today, 1969-02-01) Narlikar, J. V.Item Statistical analysis of the angular size flux density relation(IAU Symposium, 1976-03-27) Narlikar, J. V.Item Quantum fluctuations near the classical space-time singularity(Springer, 1979-01-03) Narlikar, J. V.The method of path integration is used to study the effects of quantum fluctuations in the space-time geometry near the classical singularity of general relativity. It is shown that in certain special cases explicit Feynman propagators can be constructed which enable us to evaluate these fluctuations quantitatively. The cases discussed are (i) the gravitational col- lapse of a uniform dust ball, (ii) the Friedmann cosmologies, (iii) the axisymmetric Bianchi type I cosmological model, and (iv) the general anisotropic Bianchi type I cosmological model. In all cases discussed here the quantum uncertainty grows to infinity as the classical space-time singularity is approached. In this wider regime of quantum gravitation non- singular solutions can occur with finite probabilities.Item On the apparent superluminal separation of radio sources components(Willy-Blackwell, 1979-01-13) Chitre, S. M.; Narlikar, J. V.Item Hawking process and the cosmic microwave background in a steady state universe(Elsevier, 1979-06-25) Narlikar, J. V.; Rana, N. C.It is investigated whether a large number of primordial black holes can account for the observed microwave background in a steady state universe.The answer is shown to be negative.