3 papers
cond-mat2000
Random Matrix approach to the crossover from Wigner to Poisson statistics of energy levels
Nilanjana Datta, Herve Kunz
We analyze a class of parametrized Random Matrix models, introduced by Rosenzweig and Porter, which is expected to describe the energy level statistics of quantum systems whose cla…
physics.atom-ph2000
Phase transition in the ground state of a particle in a double-well potential and a magnetic field
H. Kunz, J. Chapuis, A. Jory
We analyse the ground state of a particle in a double-well potential, with a cylindrical symmetry, and in the presence of a magnetic field. We find that the azimuthal quantum numbe…
chao-dyn1998
Memory Effects and Scaling Laws in Slowly Driven Systems
N. Berglund, H. Kunz
This article deals with dynamical systems depending on a slowly varying parameter. We present several physical examples illustrating memory effects, such as metastability and hyste…