A SUSY approach for investigation of two-dimensional quantum mechanical systems. / Ioffe, M.V.
In: Journal of Physics A: Mathematical and General, No. 43, 2004, p. 10363-10374.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - A SUSY approach for investigation of two-dimensional quantum mechanical systems
AU - Ioffe, M.V.
PY - 2004
Y1 - 2004
N2 - Different ways to incorporate two-dimensional systems which are not amenable to separation of variables treatment into the framework of supersymmetrical quantum mechanics (SUSY QM) are analysed. In particular, the direct generalization of one-dimensional Witten SUSY QM is based on supercharges of first order in momenta and allows one to connect the eigenvalues and eigenfunctions of two scalar and one matrix Schrödinger operators. The use of second-order supercharges leads to polynomial supersymmetry and relates a pair of scalar Hamiltonians, giving a set of partner systems with almost coinciding spectra. This class of systems can be studied by means of a new method of SUSY separation of variables, where supercharges allow separation of variables, but Hamiltonians do not. The method of shape invariance is generalized to two-dimensional models in order to construct purely algebraically a chain of eigenstates and eigenvalues for generalized Morse potential models in two dimensions.
AB - Different ways to incorporate two-dimensional systems which are not amenable to separation of variables treatment into the framework of supersymmetrical quantum mechanics (SUSY QM) are analysed. In particular, the direct generalization of one-dimensional Witten SUSY QM is based on supercharges of first order in momenta and allows one to connect the eigenvalues and eigenfunctions of two scalar and one matrix Schrödinger operators. The use of second-order supercharges leads to polynomial supersymmetry and relates a pair of scalar Hamiltonians, giving a set of partner systems with almost coinciding spectra. This class of systems can be studied by means of a new method of SUSY separation of variables, where supercharges allow separation of variables, but Hamiltonians do not. The method of shape invariance is generalized to two-dimensional models in order to construct purely algebraically a chain of eigenstates and eigenvalues for generalized Morse potential models in two dimensions.
M3 - Article
SP - 10363
EP - 10374
JO - Journal of Physics A: Mathematical and Theoretical
JF - Journal of Physics A: Mathematical and Theoretical
SN - 1751-8113
IS - 43
ER -
ID: 5013140