| On the Real Spectra of Calogero Model with Complex Coupling (2003) | |||||||||
Abstract | |||||||||
| We study the eigenvalue problem of the rational Calogero model with the coupling of the inverse-square interaction as a complex number. We show that although this model is manifestly non-invariant under the combined parity and time-reversal symmetry ${\cal{PT}}$, the eigenstates corresponding to the zero value of the generalized angular momentum have real energies.. Comment: revtex4 8 pages, 2 figures | |||||||||
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