Research Papers (JVN)

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Stationary states in a quantum gravity model
(Elsevier Science Publishers, 1981-05-05) Padmanabhan, T.; Narlikar, J. V.
A model theory for quantized gravity is discussed whereonly selected degrees of freedomare quantized. The concept of stationary states is introduced. It is shown that the Planck length arises as a lower bound to the space—time length scale in a natural way.
Quantum fluctuations in the Schwarzschild spacetime
(-, 1980-01-01) Narlikar, J. V.; Padmanabhan, T.
Schwarzschild solution: some conceptual difficulties
(Springer, 1987-04-27) Narlikar, J. V.; Padmanabhan, T.
It is shown that inconsistencies arise when we look upon the Schwarzschild solution as the space-time arising from a localized point singularity. The notion of black holes is critically examined, and it is argued that, since black hole formation never takes place within the past light cone of a typical external observer, the discussion of physical behavior of black holes, classical or quantum, is only of academic interest. It is suggested that problems related to the source could be avoided if the event horizon did not form and that the universe only contained quasi-black holes.