We study Hamiltonian dynamics of a single two-level atom interacting with two modes in a single cavity, which can also include an optical Kerr nonlinearity. Our model is quite general and is solved analytically and studied numerically, and the model reduces to several well known systems by setting certain parameters in the Hamiltonian to zero. We calculate and discuss entanglement between the t...

A first comprehensive phylogeny of the entire family Curtonotidae is generated from molecular markers and morphology. The molecular data set comprises 33 taxa (30 in-group Curtonotidae; three out-groups: Camilla, Diastata, Drosophila) and 4 gene regions from 3 genes: 2 non-contiguous fragments from the CPSase (carbamoylphosphate synthetase) domain of the nuclear protein coding gene CAD (= CAD1 ...

The interaction between transferred-electron effect and base widening under transient conditions in III-V heterojunction bipolar transistors is considered. Modification of the collector field profile with an n+ doping spike is shown to cause a time delay for the onset of Kirk effect creating conditions for the inception of charge instabilities. Numerical simulations suggest the possibility of s...

Stimulated phosphatidylinositol breakdown, followed by compensatory resynthesis, is a response of a wide variety of cells to many hormones and neurotransmitters. Until recently, most work on this response employed secretory tissues, nervous tissues or smooth muscles, and the most intensively studied stimuli were muscarinic, cholinergic and a-adrenergic. As a tentative synthesis of all of these ...