A class of shape-invariant bound-state problems which represent two-level systems are introduced. It is shown that the coupled-channel Hamiltonians obtained correspond to the generalization of the Jaynes-Cummings Hamiltonian. 03.65.-w,03.65.Fd Typeset using REVTEX Permanent address: Instituto de F́ısica, Universidade Federal do Rio de Janeiro, RJ Brazil. Electronic address: [email protected]....

This work compares the effect of the climate and some different protein diets on the activity of flesh and blow fly populations in one of the biggest mountains of Sarah region, south-west Kingdom of Saudi Arabia. Trapping of adult flies revealed the presence of three populations, namely, Engelisca adhamae (Lehrer & AbouZied, 2008) and Liosarcophaga babiyari (Lehrer, 1995), in addition to a sing...

We investigate the algebraic structure of the most general neutrino mass Hamiltonian and place the see-saw mechanism in an algebraic framework. We show that this Hamiltonian can be written in terms of the generators of an Sp(4) algebra. The Pauli-Gürsey transformation is an SU(2) rotation which is embedded in this Sp(4) group. This SU(2) also generates the see-saw mechanism. Typeset using REVTE...

A quantum deformed theory applicable to all shape-invariant bound-state systems is introduced by defining q-deformed ladder operators. We show these new ladder operators satisfy new q-deformed commutation relations. In this context we construct an alternative q-deformed model that preserve the shapeinvariance property presented by primary system. q-deformed generalizations of Morse, Scarf, and ...