Sentence examples for by the selection rule from inspiring English sources

By the selection rule, excitons with the angular momentum L ≠ 0 should be dark.

The pre-edge XANES spectra of Fe atom in NFNs exhibits an absorbance feature at 7115 eV for the 1s to 3d transition which is forbidden by the selection rule in case of perfect octahedral symmetry.

This helical model is equivalent to a reverse-handed, single helix with half the period and defined by the selection rule l = −3n + 7m (where l is any integer).

The fiber diffraction analysis indicated that the B15D fibril was composed of a double helix defined by the selection rule l = n + 7m (where l is even, and n and m are any integers), and having a 199-Å period and pitch, 28-Å rise per unit, and 10-Å radius.

These results observed here are in accordance with those of ZB GaAs NWs reported in [16], which is mainly caused by the selection rules of the crystal.

The polarization effects observed in the spectra are readily explained by the selection rules governing IR transitions and symmetry-based vibrational mode assignments of PEO and the 3 1 compound, P EO 3LiTf.

To improve the throughput, we need to modify the selection rule by considering the channel state.

The selection rule needs not to be specified in detail.

This is achieved by exploiting the selection rules for electric dipole transitions in the photoexcitation process to control the absolute value of the azimuthal quantum number, |m|, of the Rydberg states.

Spins are generated by optical excitation because of the selection rules governing optical transitions from heavy-hole and light-hole states to conduction-band states.

An important weakness of the progene proposal, as also acknowledged by the author, is that the selection rules which would link the appropriate amino acids and the corresponding trinucleotides are still largely unclear and vague from the physicochemical point of view.