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R. K. Pradhan

Publications and source records attributed to R. K. Pradhan.

2 recordsLinked to original sources

Are Quantum States Subjective?

The subjective nature of the quantum states is brought out and it is argued that the objective state assignment is subsequent to the subjective state of the observer regarding his state of knowledge about the system. The collapse postulate is examined in detail to bring out the inherent subjectivity of the quantum state. The role of doubt and faith in quantum state assignment is examined.

quant-ph

The Holography Hypothesis and Pre-Big Bang Cosmology

The consequences of holography hypothesis are investigated for the Pre-big-bang string cosmological models. The evolution equations are obtained from the tree level string effective action. It is shown that $S/A$ is bounded by a constant in each case, $S$ being the entropy within the volume bounded by the horizon of area $A$.

hep-th