N D Hari Dass
Articles written in Pramana – Journal of Physics
Volume 25 Issue 4 October 1985 pp 439-446 Particle Physics
Lattice field theories are described as a way to regularize continuum quantum field theories. They are obtained by replacing ordinary space time by a lattice, space time derivatives by suitable differences and Minkowski by Euclidean space. The connection between a quantum field theory is
Volume 59 Issue 2 August 2002 pp 263-267
Information cloning of harmonic oscillator coherent states
We show that in the case of unknown
Volume 59 Issue 2 August 2002 pp 303-309
N D Hari Dass B Sathiapalan Kalyanarama
We have addressed the foundational issue of how a macroscopic quantum system starting off as a pure state tends towards a mixed state described by the microcanonical ensemble. The earlier works of von Neumann and Van Kampen are also reviewed. A simple criterion is given as to when the above mentioned passage can take place.
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