نتایج جستجو برای: energy spectrum
تعداد نتایج: 862696 فیلتر نتایج به سال:
We consider three distinct methods of calculating the vibronic levels and absorption spectra of molecular dimers coupled by dipole-dipole interactions. The first method is direct diagonalization of the vibronic Hamiltonian in a basis of monomer eigenstates. The second method is to use creation and annihilation operators leading in harmonic approximation to the Jaynes-Cummings Hamiltonian. The a...
in this paper, the electronic eigenstates and energy spectra of single and two-interacting electrons confined in a concentric double quantum rings with a perpendicular magnetic field in the presence of on-center donor and acceptor impurities are calculated using the exact diagonalization method. for a single electron case, the binding energy of on-center donor and acceptor impurities ar...
A controllable energy method, which considers the undersampling issue of transfer function and valid spectral a source signal, is proposed to implement angular spectrum diffraction calculation in near far fields. The method provides an optimized frequency boundary fCE within it always keeps be diffracted. significantly reduces number samples while having same accuracy as previous methods, imply...
In this paper, the effective field theory for the anisotropic inflationary universe in Weinberg's approach is studied. We consider the leading correction terms to the standard interactions in the anisotropic inflationary models. These consist of forth derivative of the fields, scalar field, gauge field and metric. Then, the scalar power spectrum is investigated in the presence of higher energy ...
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