Volume 114, Number 4, May 2016
|Number of page(s)||6|
|Section||Condensed Matter: Structural, Mechanical and Thermal Properties|
|Published online||23 June 2016|
Two dipolar atoms in a harmonic trap
Center for Theoretical Physics, Polish Academy of Sciences - Al. Lotników 32/46, 02-668 Warsaw, Poland
Received: 1 March 2016
Accepted: 21 May 2016
Two identical dipolar atoms moving in a harmonic trap without an external magnetic field are investigated. Using the algebra of angular momentum we reduce the problem to a simple numerics. We show that the internal spin-spin interactions between the atoms couple to the orbital angular momentum causing an analogue of the Einstein-de Haas effect. We show a possibility of adiabatically pumping our system from the s-wave to the d-wave relative motion. The effective spin-orbit coupling occurs at anti-crossings of the energy levels.
PACS: 67.85.-d – Ultracold gases, trapped gases / 03.75.-b – Matter waves
© EPLA, 2016
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