sh(2/2) Superalgebra eigenstates and generalized supercoherent and supersqueezed states
arXiv:math-ph/0504018 · doi:10.1023/B:IJTP.0000028859.11739.79
Abstract
The superalgebra eigenstates (SAES) concept is introduced and then applied to find the SAES associated to the superalgebra, also known as Heisenberg--Weyl Lie superalgebra. This implies to solve a Grassmannian eigenvalue superequation. Thus, the SAES contain the class of supercoherent states associated to the supersymmetric harmonic oscillator and also a class of supersqueezed states associated to the $osp(2/2) \sdir sh(2/2)$ superalgebra, where denotes the orthosymplectic Lie superalgebra generated by the set of operators formed from the quadratic products of the Heisenberg--Weyl Lie superalgebra generators. The properties of these states are investigated and compared with those of the states obtained by applying the group-theoretical technics. Moreover, new classes of generalized supercoherent and supersqueezed states are also obtained. As an application, the superHermitian and --pseudo--superHermitian Hamiltonians without a defined Grassmann parity and isospectral to the harmonic oscillator are constructed. Their eigenstates and associated supercoherent states are calculated.
42 pages