Preparation and Determination of Spin-Polarized States in Multi-Zeeman-sublevel Atoms
arXiv:quant-ph/0611178 · doi:10.1103/PhysRevA.75.051801
Abstract
We demonstrate a simple technique to prepare and determine the desired internal quantum states in multi-Zeeman-sublevel atoms. By choosing appropriate coupling and pumping laser beams, atoms can be easily prepared in a desired Zeeman sublevel with high purity or in any chosen ground-state population distributions. The population distributions or state purities of such prepared atomic states can be determined by using a weak, circularly-polarized probe beam due to differences in transition strengths among different Zeeman sublevels. Preparing well-defined internal quantum states in multi-Zeeman-sublevel atoms (or spin-polarized quantum-state engineering) will be very important in demonstrating many interesting effects in quantum information processing with multi-level atomic systems.
17pages, 4figures, Submit to Physical Review Letters
References in corpus (5)
- Large Cross-Phase Modulation between Slow Co-propagating Weak Pulses in Rb
- Efficient Quantum State Estimation by Continuous Weak Measurement and Dynamical Control
- Quantum Phase Gate Operation Based on Nonlinear Optics: Full Quantum Analysis
- Controlled polarization rotation of an optical field in multi-Zeeman-sublevel atoms
- Multi-dark-state resonances in cold multi-Zeeman-sublevel atoms