Coherent Optical Control of the Quantum State of a Single Quantum Dot
Abstract
Picosecond optical excitation was used to coherently control the excitation in a single quantum dot on a time scale that is short compared with the time scale for loss of quantum coherence. The excitonic wave function was manipulated by controlling the optical phase of the two-pulse sequence through timing and polarization. Wave function engineering techniques, developed in atomic and molecular systems, were used to monitor and control a nonstationary quantum mechanical state composed of a superposition of eigenstates. The results extend the concept of coherent control in semiconductors to the limit of a single quantum system in a zero-dimensional quantum dot.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Nov 20, 1998
- Source ID
- 10.1126/science.282.5393.1473
Entities
People
- D. G. Steel
- D. Gammon
- D. S. Katzer
- Dong Hun Park
- J. Erland
- N. H. Bonadeo
Organizations
- University of Michigan