Analytic results for $N$ particles with $1/r^2$ interaction in two dimensions and an external magnetic field

Details Analytic results for $N$ particles with $1/r^2$ interaction in two dimensions and an external magnetic field Analytic results for $N$ particles with $1/r^2$ interaction in two dimensions and an external magnetic field

1995-04-10

arxiv.org/abs/cond-mat/9504025v1

Physics

Condensed Matter

To appear in Physical Review Letters (in press). RevTeX file. Two figures available from n.johnson@physics.oxford.ac.uk or l

Scientific paper

10.1103/PhysRevLett.74.4277

The $2N$-dimensional quantum problem of $N$ particles (e.g. electrons) with interaction $\beta/r^2$ in a two-dimensional parabolic potential $\omega_0$ (e.g. quantum dot) and magnetic field $B$, reduces exactly to solving a $(2N-4)$-dimensional problem which is independent of $B$ and $\omega_0$. An exact, infinite set of relative mode excitations are obtained for any $N$. The $N=3$ problem reduces to that of a ficticious particle in a two-dimensional, non-linear potential of strength $\beta$, subject to a ficticious magnetic field $B_{\rm fic}\propto J$, the relative angular momentum.

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