On the linear dispersion--linear potential quantum oscillator

We solve the bi-linear quantum oscillator H=v|p|+F|x| both quasi-classically and numerically.Comment: 5 pages, 3 figure

Generalizations of Perelomov's identity on the completeness of coherent states

We proof the Perelomov identity for arbitrary 2D lattices using Fourier transformation. We further generalize it to situations where the origin does not coincide with a lattice site, and where the form of the exponential factor is reminiscent of magnetic wave functions in uniaxial rather than symmetric gauge.Comment: 4 pages, no figure

Comment on "Spinon Attraction in Spin-1/2 Antiferromagnetic Chains"

Comment on B.A. Bernevig, D. Giuliano, and R.B. Laughlin, Phys. Rev. Lett. 86, 3392 (2001)