TWO-PHOTON SPECTROSCOPY OF 1D^- DISSIPATIVE TUNNELING IN QUANTUM MOLECULES WITH D^-CENTRES

Krevchik Vladimir Dmitrievich, Doctor of physico-mathematical sciences, professor, head of sub-department of physics, Penza State University, physics@pnzgu.ru
Semenov Mikhail Borisovich, Doctor of physico-mathematical sciences, professor, sub-department of physics, Penza State University, physics@pnzgu.ru
Razumov Aleksey Viktorovich, Candidate of physico-mathematical sciences, associate professor, sub-department of general physics, Penza State Pedagogic University named after V. G. Belinsky, physics@pnzgu.ru
Gavrina Zoya Alekseevna, Applicant, Penza State University, physics@pnzgu.ru
Krevchik Pavel Vladimirovich, Student, Penza State University, physics@pnzgu.ru

539.2:541.117

 Theoretical investigation of the electric field influence on tunnel process in quantum molecule with D^- center is fulfilled in one – instanton approximation. It is shown, that the presence of electric field leads to the double – well transformation, and, as consequence, to appearance of the resonance peak on the tunnel probability field dependence, when the double – well oscillator potential become a symmetric one. It is found, than such feature can be identified in spectra of two – photon impurity absorption.

dissipative tunneling, two – photon spectroscopy.