Title :
Application of quantum control theory to manipulate the Zeeman states of an atom
Author :
Heinzen, D.J. ; Xu, G.
Author_Institution :
Dept. of Phys., Texas Univ., Austin, TX, USA
Abstract :
Summary form only given. We present experimental results that demonstrate a high degree of control over the spin state of an atom. The experiment is carried out on a sample of about 10/sup 7/ laser-cooled /sup 133/Cs atoms in their F=4 ground state hyperfine level released from a magneto-optical trap. Our method is to apply a static magnetic field B/sub 0/, a time-dependent transverse magnetic field B/sub x/(t), and a linearly polarized off-resonance laser field to the atoms. The Hamiltonian is H=-/spl mu//spl middot/B(t)+ M/sup 2//spl omega//sub E/|M>\n\n\t\t
Keywords :
Zeeman effect; caesium; ground states; hyperfine structure; laser cooling; optical pumping; quantum optics; radiation pressure; Cs; Hamiltonian; Larmor frequency; Zeeman states manipulation; arbitrary spin states; atom optics; atom spin state; finite anharmonic ladder; ground state hyperfine level; laser-cooled /sup 133/Cs atoms; linearly polarized off-resonance laser field; magneto-optical trap; optical pumping; quantum control theory; quantum states; spin precession; spin projection quantum number; static magnetic field; time-dependent transverse magnetic field; Atom lasers; Atomic beams; Control theory; Frequency; Joining processes; Laser theory; Magnetic fields; Polarization; Quantum mechanics; Stationary state;
Conference_Titel :
Quantum Electronics and Laser Science Conference, 1999. QELS '99. Technical Digest. Summaries of Papers Presented at the
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
1-55752-576-X
DOI :
10.1109/QELS.1999.807491
