نتایج جستجو برای: quadrupole coupling

تعداد نتایج: 160340  

Journal: :Physical Review C 2021

The evolution of quadrupole and octupole collectivity their coupling is investigated in a series even-even isotopes the actinides Ra, Th, U, Pu, Cm, Cf with neutron number interval $130\ensuremath{\leqslant}N\ensuremath{\leqslant}150$. Hartree-Fock-Bogoliubov approximation, based on parametrization D1M Gogny energy density functional, employed to generate potential surfaces depending upon axial...

Journal: :Journal of the American Chemical Society 2001
N G Dowell S E Ashbrook J McManus S Wimperis

Several methods have been proposed for obtaining highresolution NMR spectra of half-integer spin quadrupolar nuclei (I ) /2, /2, etc.) in powdered solids. The double-rotation (DOR), dynamic-angle spinning (DAS), multiple-quantum magic-angle spinning (MQMAS), and satellite-transition magic-angle spinning (STMAS) techniques1 have attracted great interest owing to the importance of the nuclides 11...

A fragment of Histidine rich protein II (HRP II 215-236) was investigated by 14N and 17O electric field gradient, EFG, tensor calculations using DFT. This study is intended to explore the differences between 310-helix and α-helix of HRPII both in the gas phase and in solution. To achieve the aims, the 17O and 14N NQR parameters of a fragment of HRPII (215-236) for both structures are calculated...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1997
A Medek V Frydman L Frydman

We describe the application of 59Co NMR to the study of naturally occurring cobalamins. Targets of these investigations included vitamin B12, the B12 coenzyme, methylcobalamin, and dicyanocobyrinic acid heptamethylester. These measurements were carried out on solutions and powders of different origins, and repeated at a variety of magnetic field strengths. Particularly informative were the soli...

Nuclear quadrupole resonance (NQR) spectroscopy is an accurate method for determination of electric charge distribution around quadrupolar nuclei. Using ab initio computational methods, it is possible to calculate the Nuclear Quadrupole Coupling Constants (NQCCs) with high accuracy and obtain the useful structural information by using these parameters. Sodium Borohydride, NaBH4, is a metal hydr...

Journal: :Physical review letters 2002
A B Mundt A Kreuter C Becher D Leibfried J Eschner F Schmidt-Kaler R Blatt

The quadrupole S(1/2)-D(5/2) optical transition of a single trapped Ca+ ion, well suited for encoding a quantum bit of information, is coherently coupled to the standing wave field of a high finesse cavity. The coupling is verified by observing the ion's response to both spatial and temporal variations of the intracavity field. We also achieve deterministic coupling of the cavity mode to the io...

Journal: :Journal of Physics B 2021

We study the miscibility properties and ground state phases of two-component spin-orbit (SO) coupled Bose-Einstein condensates (BECs) in a harmonic trap with strong axial confinement. By numerically solving Gross-Pitaevskii equations two-dimensional setting, we analyze SO-coupled BECs for two possible permutations intra- interspecies interactions, namely (i) weak interactions (W-W) (ii) (W-S). ...

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