Results 21 to 30 of about 29,559 (110)

Fano resonances in plasmonic core-shell particles and the Purcell effect

open access: yes, 2018
Despite a long history, light scattering by particles with size comparable with the light wavelength still unveils surprising optical phenomena, and many of them are related to the Fano effect.
A Alù   +64 more
core   +1 more source

Multipole Moments of Fractal Distribution of Charges

open access: yes, 2005
In this paper we consider the electric multipole moments of fractal distribution of charges. To describe fractal distribution, we use the fractional integrals. The fractional integrals are considered as approximations of integrals on fractals.
Christensen R. M.   +2 more
core   +2 more sources

The Hyperfine Molecular Hubbard Hamiltonian

open access: yes, 2010
An ultracold gas of heteronuclear alkali dimer molecules with hyperfine structure loaded into a one-dimensional optical lattice is investigated. The \emph{Hyperfine Molecular Hubbard Hamiltonian} (HMHH), an effective low-energy lattice Hamiltonian, is ...
J. M. Brown   +8 more
core   +1 more source

Dipole and Quadrupole Skyrmions in S=1 (Pseudo)Spin Systems [PDF]

open access: yes, 2001
In terms of spin coherent states we have investigated topological defects in 2D S=1 (pseudo)spin quantum system with the bilinear and biquadratic isotropic exchange in the continuum limit. The proper Hamiltonian of the model can be written as bilinear in
Mikushina, N. A., Moskvin, A. S.
core   +2 more sources

Molecular electric moments calculated by using natural orbital functional theory

open access: yes, 2016
The molecular electric dipole, quadrupole and octupole moments of a selected set of 21 spin-compensated molecules are determined employing the extended version of the Piris natural orbital functional 6 (PNOF6), using the triple-$\zeta$ Gaussian basis set
Mitxelena, Ion, Piris, Mario
core   +1 more source

Predicted electric field near small superconducting ellipsoids

open access: yes, 2003
We predict the existence of large electric fields near the surface of superconducting bodies of ellipsoidal shape of dimensions comparable to the penetration depth.
F. London   +5 more
core   +1 more source

First-principles results for electromagnetic properties of $sd$ shell nuclei

open access: yes, 2017
In this work we present $ab~initio$ shell-model calculations for electric quadrupole moments and magnetic dipole moments of $sd$ shell nuclei using valence-space Hamiltonians derived with two $ab~initio$ approaches: the in-medium similarity ...
Saxena, Archana, Srivastava, Praveen C.
core   +1 more source

Combined parametrization of the neutron electric form factor and the $\gamma^\ast N \to \Delta(1232)$ quadrupole form factors

open access: yes, 2019
Models based on $SU(6)$ symmetry breaking and large $N_c$ limit provide relations between the pion cloud contributions to the $\gamma^\ast N \to \Delta(1232)$ quadrupole form factors, electric ($G_E$) and Coulomb ($G_C$), and the neutron electric form ...
Ramalho, G.
core   +1 more source

Electromagnetic Moments of the Baryon Decuplet

open access: yes, 1993
We compute the leading contributions to the magnetic dipole and electric quadrupole moments of the baryon decuplet in chiral perturbation theory. The measured value for the magnetic moment of the $\Omega^-$ is used to determine the local counterterm for ...
A. Bosshard   +30 more
core   +1 more source

On the form factors of $d^*(2380)$

open access: yes, 2018
In order to explore the possible physical quantities for judging different structures of the newly observed resonance $d^*(2380)$, we study its electromagnetic form factors.
Dong, Yubing   +2 more
core   +1 more source

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