A method for constructing random matrix models of disordered bosons

Details A method for constructing random matrix models of disordered bosons A method for constructing random matrix models of disordered bosons

2010-12-17

arxiv.org/abs/1012.3791v1

Physics

Mathematical Physics

12 pages, 1 figure

Scientific paper

Random matrix models of disordered bosons consist of matrices in the Lie algebra g=sp_n(R). Assuming dynamical stability, their eigenvalues are required to be purely imaginary. Here a method is proposed for constructing ensembles (E,P) of G-invariant sets E of such matrices with probability measures P. These arise as moment map direct images from phase spaces X which play an important role in complex geometry and representation theory. In the toy-model case of n=1, where X is the complex bidisk and P is the direct image of the uniform measure, an explicit description of the spectral measure is given.

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