Coherent population trapping of an electron spin in a single negatively charged quantum dot

2008/05/14 by Xiaodong Xu, Bo Sun, P. R. Berman +7 · 2 citations
Physics and Astronomy · #Atomic and Subatomic Physics Research #Quantum and electron transport phenomena #Quantum optics and atomic interactions #cond-mat.mes-hall

paper · pdf · doi:10.1038/nphys1054

to be appeared in Nature Physics

arxiv created 2008/05/14 · openalex publication_date 2008/08/17 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/04

Abstract

Coherent population trapping (CPT) refers to the steady-state trapping of population in a coherent superposition of two ground states which are coupled by coherent optical fields to an intermediate state in a three-level atomic system. Recently, CPT has been observed in an ensemble of donor bound spins in GaAs and in single nitrogen vacancy centers in diamond by using a fluorescence technique. Here we report the demonstration of CPT of an electron spin in a single quantum dot (QD) charged with one electron.

Citations

• Restoring Coherence Lost to a Slow Interacting Mesoscopic Spin Bath
• Coherent trapping of atomic populations
• Coherent Manipulation of Coupled Electron Spins in Semiconductor Quantum Dots
• Stimulated and Spontaneous Optical Generation of Electron Spin Coherence in Charged GaAs Quantum Dots
• The Physical Implementation of Quantum Computation
• Electromagnetically Induced Transparency

Cited by

• Electromagnetically induced transparency and slow light with optomechanics
• Direct Observation of Coherent Population Trapping in a Superconducting Artificial Atom