Mustansir Barma
Articles written in Pramana – Journal of Physics
Volume 36 Issue 5 May 1991 pp 531-536 Research Articles
Distribution of degeneracies in simple quantum systems
Mustansir Barma V Subrahmanyam
In some simple quantum mechanical systems, the degeneracy of typical energy levels grows as a power of the energy or size. We ask whether, after dividing out this average growth, there is a well defined probability distribution of scaled degeneracies in the limit of large size or energy. The answer is yes, for a free particle in a sphere or cube. For the sphere, the distribution of scaled degeneracies is shown to follow a circular law. For the cube, a numerical study shows that the distribution rises linearly for low values of the scaled degeneracy and decays exponentially for large values.
Volume 40 Issue 4 April 1993 pp 311-320
Collective dipole oscillations in atomic nuclei and small metal particles
The systematics of photon absorption cross sections in nuclei and small metal particles are examined as a function of the number of constituent fermions
Volume 49 Issue 1 July 1997 pp 155-160 Statistical Physics
Deposition and evaporation of
When the dynamics of a system partitions the phase space of configurations into very many disjoint sectors, we are faced with an assignment problem: Given a configuration, how can we tell which sector it belongs to? We study this problem in connection with the dynamics of deposition and evaporation of
Volume 58 Issue 2 February 2002 pp 409-417
Locating the minimum: Approach to equilibrium in a disordered, symmetric zero range process
We consider the dynamics of the disordered, one-dimensional, symmetric zero range process in which a particle from an occupied site
Volume 73 Issue 1 July 2009 pp 1-1
Volume 94, 2020
All articles
Continuous Article Publishing mode
Click here for Editorial Note on CAP Mode
© 2017-2019 Indian Academy of Sciences, Bengaluru.