Preparation and determination of spin-polarized states in multi-Zeeman-sublevel atoms

doi:10.1103/PHYSREVA.75.051801

Abstract

We demonstrate a simple, all-optical 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 (spin-polarized quantum-state engineering). 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. This technique will have potential impact on quantum-information processing in multilevel atomic systems.

Controlled polarization rotation of an optical field in multi-Zeeman-sublevel atoms

Li Shujing ; Wang Bo ; Yang Xudong ; ... September 2006 - Physical Review. A

We investigate, both theoretically and experimentally, the phenomenon of polarization rotation of a weak, linearly polarized optical (probe) field in an atomic system with multiple three-level electromagnetically induced transparency (EIT) subsystems. The polarization rotation angle can be controlled by a circularly polarized coupling beam, which breaks the symmetry in number of EIT subsystems seen by the left and right circularly polarized components of the weak probe beam. A large polarization rotation angle (up to 45 deg. ) has been achieved with a coupling beam power of only 15 mW. Detailed theoretical analyses including different transition probabilities in different transitions andmore »« less
DOI: 10.1103/PHYSREVA.74.033821
Theoretical calculation of the dependence of Zeeman-sublevel energies on the magnetic field for the 2p/sup 5/4p Ne I, 3p/sup 5/6p Ar I, and 1s3d He I configurations

Anisimova, G.P. ; Semenov, R.I. January 1983 - Opt. Spectrosc. (Engl. Transl.); (United States)

The dependence of the Zeeman-sublevel energies on the magnetic field is obtained in intermediate coupling in the single-configuration approximation and with the semiempirical method for the 1s3d He I (0--100,000 Oe), 2p/sup 5/4p Ne I, and 3p/sup 5/6p Ar I (0--300,000 Oe) configurations as a result of the diagonalization of the total energy matrix.
Rotating Ground States of a One-Dimensional Spin-Polarized Gas of Fermionic Atoms with Attractive p-Wave Interactions on a Mesoscopic Ring

Girardeau, M. D. ; Wright, E. M. ; Department of Physics, University of Arizona, Tucson, Arizona 85721 May 2008 - Physical Review Letters

The major finding of this Letter is that a one-dimensional spin-polarized gas composed of an even number of fermionic atoms interacting via attractive p-wave interactions and confined to a mesoscopic ring has a degenerate pair of ground states that are oppositely rotating. In any realization the gas will be measured to rotate one way or the other in spite of the fact that there is no external rotation or bias fields. Our goal is to show that this counterintuitive finding is a natural consequence of the combined effects of quantum statistics, ring topology, and exchange interactions.
DOI: 10.1103/PHYSREVLETT.100.200403
Determination of spin-polarized quantum well states and spin-split energy dispersions of Co ultrathin films grown on Mo(110)

Park, J. S. ; Quesada, A. ; Meng, Y. ; ... March 2011 - Physical Review B
Cited by 4
DOI: 10.1103/PhysRevB.83.113405
SPIN DETERMINATION OF ISOBARIC ANALOGUE STATES WITH POLARIZED PROTONS.

Clausnitzer, G. ; Fleischmann, R. ; Graw, G. ; ... October 1968 - pp 329 of Contributions, International Conference on Nuclear Structure, September 7--13, 1967, Tokyo, Japan. Tokyo, Tokyo Univ., 1967.

Title: Preparation and determination of spin-polarized states in multi-Zeeman-sublevel atoms

Abstract

Citation Formats

Controlled polarization rotation of an optical field in multi-Zeeman-sublevel atoms

Theoretical calculation of the dependence of Zeeman-sublevel energies on the magnetic field for the 2p/sup 5/4p Ne I, 3p/sup 5/6p Ar I, and 1s3d He I configurations

Rotating Ground States of a One-Dimensional Spin-Polarized Gas of Fermionic Atoms with Attractive p-Wave Interactions on a Mesoscopic Ring

Determination of spin-polarized quantum well states and spin-split energy dispersions of Co ultrathin films grown on Mo(110)

SPIN DETERMINATION OF ISOBARIC ANALOGUE STATES WITH POLARIZED PROTONS.