Experimental investigation of dark pseudoresonance at D1 line of {sup 87}Rb at excitation by linear polarized field; Ehksperimental'noe issledovanie temnogo psevdorezonansa na D1 linii {sup 87}Rb pri vozbuzhdenii linejno polyarizovannym polem

The measurements of the metrological characteristics (amplitude, width, and shift in the magnetic field) of the dark pseudoresonance, which was proposed by Kazakov et al. as the reference resonance for an atomic frequency standard, are reported. It has been shown that the characteristics of the pseudoresonance are worse than those of the unsplit electromagnetically induced transparency resonance for the excitation scheme with the lin||lin polarization on the D1 line of the {sup 87}Rb atom.