The dust ball collapse is studied in the context of "rainbow metric" approach (where matter content supplemented with a scalar field perturbation) to Oppenheimer-Snyder scenario within framework loop quantum cosmology. global spacetime structure determined for this and subsequently used evaluate entanglement entropy via slight adaptation existing formulas. resulting model shown qualitatively re...

We consider heavy meson-antimeson pairs and their coupling to quarkonium in the context of nonrelativistic effective field theories (EFTs) incorporating adiabatic expansion. work out all leading order couplings obtain contributions masses widths quarkonia. match new potentials terms QCD. Using available lattice data for coupled system lowest lying pair, we extract mixing potential use it comput...

In an era of globalization, innovation, and competitive intelligence, the nuclear supply chain is continually evolving increasing its capabilities. The top-secret operation ALSOS plays a key role in (re)evolution atomic energy as future, with constant focus on responsible use energy. US, hegemon, has harnessed leaders to their full potential, J. Robert Oppenheimer being one leading names charis...

The excitation cross-sections of the nS states atomic hydrogen, n = 2 to 6, by electron impact on ground state hydrogen were calculated using variational polarized-orbital method at various incident energies in range 10 122 eV. Converged obtained sixteen partial waves (L 0 15). Excitation 2S state, earlier, higher than before. Results hybrid theory (variational polarized orbital method) are com...

Cilly Kugelmann, Fritz Backhaus (Hrsgg.), Jüdische Figuren in Film und Karikatur. Die Rothschilds Joseph Süß Oppenheimer (Schriftenreihe des Jüdischen Museums Frankfurt am Main, Bd. 2), Sigmaringen (Jan Thorbecke) 1996, 168 S., 47 Abb.

The time–dependent Born–Oppenheimer approximation describes the quantum mechanical motion of molecular systems. This approximation fails if a wavepacket propagates through an electron energy level crossing or “avoided crossing.” We discuss the various types of crossings and avoided crossings and describe what happens when molecular systems propagate through them. It is not practical to solve th...