On the Foundations of Quantum Theory

After giving a panoramic view of the " textbook " interpretation of the new quantum mechanics, as a sequel to the old quantum theory, the conceptual basis of quantum theory since the Copenhagen Interpretation is reviewed in the context of various proposals since Einstein and Niels Bohr, designed to throw light on possible new facets bearing on its foundations, the key issues to its inherent " incompleteness " being A) measurement, and B) quantum non-locality. A related item on measurement, namely Quantum Zeno (as well as anti-Zeno) effect is also reviewed briefly. The inputs for the new facets are from some key Indian experts : The Big Bang of Theoretical Physics dates back to Newton with his 3 Laws of Motion. Space and time were two distinct and independent entities, each absolute in its own right, which provided a background field for the dynamical activities of Matter, in accordance with the 3 Laws of Motion. Gravitation was a universal force, again governed by Newton's diktat, which pulled everything far and near, according to the inverse square law. To manage this huge investment, Newton had to take recourse to the tools of Mathematics which