A P Balachandran
Articles written in Pramana – Journal of Physics
Volume 25 Issue 4 October 1985 pp 473-479 Nuclear Physics
We review the Skyrme model which treats baryons as chiral solitons.
Volume 56 Issue 2-3 February 2001 pp 223-237 Foundations Of Quantum Theory
Any two infinite-dimensional (separable) Hilbert spaces are unitarily isomorphic. The sets of all their self-adjoint operators are also therefore unitarily equivalent. Thus if all self-adjoint operators can be observed, and if there is no further major axiom in quantum physics than those formulated for example in Dirac’s ‘quantum mechanics’, then a quantum physicist would not be able to tell a torus from a hole in the ground. We argue that there are indeed such axioms involving observables with smooth time evolution: they contain commutative subalgebras from which the spatial slice of spacetime with its topology (and with further refinements of the axiom, its
Volume 93 | Issue 5
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