Tunneling through nonstationary barriers and Euclidean resonance
Abstract
The phenomenon of Euclidean resonance (a strong enhancement of quantum tunneling through a nonstationary potential barrier) is applied to disintegration of atoms and molecules through tunnel barriers formed by applied constant and time-dependent electric fields. There are two different channels for such disintegration, electronic and ionic. The electronic mechanism is associated with the ionization of a molecule into an electron and a positive ion. The required frequencies are in a wide range between 100MHz and the infrared. This mechanism may constitute a method of selective destruction of chemical bonds. The ionic mechanism consists of dissociation of a molecule into two ions. Since an ion is more massive than an electron, the necessary frequency is about 1MHz . This provides the theoretical possibility of a different method of isotope separation by radio frequency waves.
- Publication:
-
Physical Review A
- Pub Date:
- September 2004
- DOI:
- 10.1103/PhysRevA.70.032110
- Bibcode:
- 2004PhRvA..70c2110I
- Keywords:
-
- 03.65.Xp;
- 03.65.Sq;
- 42.50.Hz;
- Tunneling traversal time quantum Zeno dynamics;
- Semiclassical theories and applications;
- Strong-field excitation of optical transitions in quantum systems;
- multiphoton processes;
- dynamic Stark shift