Coherent Population Trapping in Two-Electron Three-Level Systems with Aligned Spins

Jordi Mompart, Ramon Corbalan, Luis Roso, Luis Roso

Research output: Contribution to journalArticleResearchpeer-review

Abstract

The possibility of coherent population trapping in two electron states with aligned spins (orthosystem) is evidenced. From the analysis of a three-level atomic system containing two electrons, and driven by the two laser fields needed for coherent population trapping, a conceptually new kind of dark state appears. The properties of this trapping are physically interpreted in terms of a dark hole, instead of a dark two-electron state. This technique, among many other applications, offers the possibility of measuring, with subnatural resolution, some superposition-state matrix elements of the electron-electron correlation that due to their time dependent nature are inaccessible by standard measuring procedures. © 2002 The American Physical Society.
Original languageEnglish
Pages (from-to)4
JournalPhysical Review Letters
Volume88
DOIs
Publication statusPublished - 1 Jan 2002

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