1,230 research outputs found
Coherent states and parasupersymmetric quantum mechanics
It is well known that Parafermi and Parabose statistics are natural extensions of the usual Fermi and Bose ones, enhancing trilinear (anti)commutation relations instead of bilinear ones. Due to this generalization, positive parameters appear: the so-called orders of paraquantization p (= 1, 2, 3, ...) and h sub 0 (= 1/2, 1, 3/2, ...), respectively, the first value leading in each case to the usual statistics. The superpostion of the parabosonic and parafermionic operators gives rise to parasupermultiplets for which mixed trilinear relations have already been studied leading to two (nonequivalent) sets: the relative Parabose and the relative Parafermi ones. For the specific values p = 1 = 2h sub 0, these sets reduce to the well known supersymmetry. Coherent states associated with this last model have been recently put in evidence through the annihilation operator point of view and the group theoretical approach or displacement operator context. We propose to realize the corresponding studies within the new context p = 2 = 2h sub 0, being then directly extended to any order of paraquantization
Parasupersymmetric Quantum Mechanics with Generalized Deformed Parafermions
A superposition of bosons and generalized deformed parafermions corresponding
to an arbitrary paraquantization order is considered to provide
deformations of parasupersymmetric quantum mechanics. New families of
parasupersymmetric Hamiltonians are constructed in connection with two examples
of su(2) nonlinear deformations such as introduced by Polychronakos and Ro\v
cek.Comment: 9 pages, LaTeX, no figures, to be published in Helv. Phys. Act
On oscillatorlike Hamiltonians and squeezing
Generalizing a recent proposal leading to one-parameter families of
Hamiltonians and to new sets of squeezed states, we construct larger classes of
physically admissible Hamiltonians permitting new developments in squeezing.
Coherence is also discussed.Comment: 15 pages, Late
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