Abstract
The possibility of coherent population trapping in two electron states with aligned spins was shown. Appearance of a new kind of dark state was concluded by analysis of a three-level atomic system containing two electrons, and driven by two laser fields. The properties of trapping were interpreted in terms of a dark hole, instead of a dark, two electron state. The technique is applied in measurement of superposition-state matrix elements of the electron-electron correlation with subnatural resolution.
| Original language | English |
|---|---|
| Article number | 023603 |
| Pages (from-to) | 236031-236034 |
| Journal | Physical review letters |
| Volume | 88 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 14 Jan 2002 |