Articles written in Pramana – Journal of Physics
Volume 9 Issue 4 October 1977 pp 371-384 General Relativity
The wave equation for a scalar field ϕ and vector potential
Volume 35 Issue 2 August 1990 pp 1- Rapid Communications
A definition for the intrinsic time co-ordinate is proposed, using the phase of the wave function of the universe. This definition generalizes the notion of time co-ordinate which arises in the semiclassical cosmology. It also leads to acceptable results for the evaluation of expectation values of physical variables.
Volume 35 Issue 3 September 1990 pp 317-323 Research Articles
The role of time coordinate in the realization of March’s principle is highlighted. It is shown that Mach’s principle is linked to the definition of a ‘particle’. These results suggest a deep connection between quantum gravity and Mach’s principle.
Volume 36 Issue 3 March 1991 pp 253-269
The quantisation of a charged scalar field in an externally specified electromagnetic field, described by the vector potential
Volume 37 Issue 3 September 1991 pp 179-233 Review
The quantum theories of a scalar field interacting with external electromagnetic and gravitational fields respectively are compared. It is shown that several peculiar features, like the ambiguity of particle definition, thermal effects etc., which are thought to be special to quantum theory in curved spacetime, have analogues in the case of electromagnetism.
Volume 49 Issue 2 August 1997 pp 161-192 Review
In this review we discuss cosmological
Volume 94, 2020
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