We study several-matrix models and show that when the potential is convex and a small perturbation of the Gaussian potential, the first order correction to the free energy can be expressed as a ...

This is a preview. Log in through your library . Abstract Some oscillation criteria are given for the second order matrix differential system Y′ ′ + Q(t)Y = 0, where Y and Q are n × n real continuous ...

For the description and observation of quantum mechanical tunnelling, a double-well-type potential, where two localized spatial modes are separated by a barrier, is among the conceptually simplest set ...