We perform a direct variational determination of the second-order (two-particle) density matrix corresponding to a many-electron system, under a restricted set of the two-index N-representability P-, ...

The Delta period was associated with a higher risk of severe maternal adverse outcome and the Omicron period with a lower risk of severe adverse outcome compared to pre-Delta era. The reported risk of ...

We describe a novel and rigorous vector eigenfunction expansion of electric-type Green's dyadics for radially multi- layered uniaxial anisotropic media in terms of the modified spherical vector wave ...

Contrary to classical ray tracing, where the one ray representing a locally plane wave front is searched, the new method requires multiple representatives of each physical EM wave at a time. The ...

Cloudy. Periods of light rain this morning. High around 90F. Winds light and variable. Chance of rain 90%.. Clear to partly cloudy. Low 72F. Winds light and variable.

The intramolecular proton transfer completely changes the parity of the electronic wave functions of the core molecule, and the electron tunneling channels around the Fermi energy are thus largely ...