The U(1)-Kepler Problems

Details The U(1)-Kepler Problems The U(1)-Kepler Problems

2008-05-07

arxiv.org/abs/0805.0833v2

J. Math. Phys. 51, 122105 (2010)

Physics

Mathematical Physics

13 pages, more details

Scientific paper

10.1063/1.3527268

Let $n\ge 2$ be a positive integer. To each irreducible representation $\sigma$ of $\mr U(1)$, a $\mr U(1)$-Kepler problem in dimension $(2n-1)$ is constructed and analyzed. This system is super integrable and when $n=2$ it is equivalent to a MICZ-Kepler problem. The dynamical symmetry group of this system is $\widetilde {\mr U}(n, n)$, and the Hilbert space of bound states ${\ms H}(\sigma)$ is the unitary highest weight representation of $\widetilde {\mr U}(n, n)$ with highest weight $$(\underbrace{-1/2, ..., -1/2}_n, 1/2+\bar \sigma, \underbrace{1/2, ..., 1/2}_{n-1})$$ when $\bar \sigma \ge 0$ or $$(\underbrace{-1/2, ..., -1/2}_{n-1}, -1/2+\bar \sigma, \underbrace{1/2, ..., 1/2}_n)$$ when $\bar \sigma\le 0$. (Here $\bar\sigma$ is the infinitesimal character of $\sigma$.) Furthermore, it is shown that the correspondence between $\sigma^*$ (the dual of $\sigma$) and $\ms H(\sigma)$ is the theta-correspondence for dual pair $(\mr{U}(1), {\mr U}(n,n))$ in $\mr{Sp}(4n, \bb R)$.

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