Publications in Scientific Journals:
T. Tscherbul, T. Calarco, I. Lesanovsky, R. Krems, A. Dalgarno, H.-J. Schmiedmayer:
"rf-field-induced Feshbach resonances";
Physical Review A,
81
(2010),
050701;
1
- 4.
English abstract:
A rigorous quantum theory of atomic collisions in the presence of radio frequency (rf) magnetic fields is
developed and applied to elucidate the effects of combined dc and rf magnetic fields on ultracold collisions of
Rb atoms. We show that rf fields can be used to induce Feshbach resonances, which can be tuned by varying the
amplitude and frequency of the rf field. The rf-induced Feshbach resonances occur also in collisions of atoms in
low-field-seeking states at moderate rf field strengths easily available in atom chip experiments, which opens up
the world of tunable interactions to magnetically trappable atomic quantum gases.
"Official" electronic version of the publication (accessed through its Digital Object Identifier - DOI)
http://dx.doi.org/10.1103/PhysRevA.81.050701
Electronic version of the publication:
http://publik.tuwien.ac.at/files/PubDat_187647.pdf