Electron capture and scaling anomaly in polar molecules (CROSBI ID 135839)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Pulak Ranjan, Giri ; Kumar, S. Gupta ; Meljanac, Stjepan ; Samsarov, Andjelo
engleski
Electron capture and scaling anomaly in polar molecules
We present a new analysis of the electron capture mechanism in polar molecules, based on von Neumann's theory of self-adjoint extensions. Our analysis suggests that it is theoretically possible for polar molecules to form bound states with electrons, even with dipole moments smaller than the critical value D_0 given by 1.63\times10^{; ; ; ; ; ; -18}; ; ; ; ; ; esu cm. This prediction is consistent with the observed anomalous electron scattering in H_2S and HCl, whose dipole moments are smaller than the critical value D_0. We also show that for a polar molecule with dipole moment less than D_0, typically there is only a single bound state, which is in qualitative agreement with observations. We argue that the quantum mechanical scaling anomaly is responsible for the formation of these bound states.
self-adjoint extension; quantum mechanical anomaly
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano