Physics – Condensed Matter – Other Condensed Matter
Scientific paper
2006-12-07
Physics
Condensed Matter
Other Condensed Matter
4 pages, 2 eps figures
Scientific paper
10.1103/PhysRevA.75.053606
We show that an effective quadratic Zeeman effect can be generated in $^{52}$Cr by proper laser configurations, and in particular by the dipole trap itself. The induced quadratic Zeeman effect leads to a rich ground-state phase diagram, can be used to induce topological defects by controllably quenching across transitions between phases of different symmetries, allows for the observability of the Einstein-de Haas effect for relatively large magnetic fields, and may be employed to create $S=1/2$ systems with spinor dynamics. Similar ideas could be explored in other atomic species opening an exciting new control tool in spinor systems.
Fattori Marco
Pfau Tilman
Santos Laércio
Stuhler Jürgen
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