Saeed Ghanbari et al 2007 J. Phys. B: At. Mol. Opt. Phys. 40 1283 doi:10.1088/0953-4075/40/6/018
Saeed Ghanbari, Tien D Kieu and Peter Hannaford
Show affiliationsWe report on a class of configurations of permanent magnets on an atom chip for producing 1D and 2D periodic arrays of magnetic microtraps with non-zero potential minima and variable barrier height for trapping and manipulating ultracold atoms and quantum degenerate gases. We present analytical expressions for an infinite magnetic lattice for the relevant physical quantities and compare them with our numerical results. In one of the configurations of permanent magnets, we show how it is possible by changing the angle between the crossed periodic arrays of magnets to go from a 1D array of 2D microtraps to a 2D array of 3D microtraps and thus to continuously vary the barrier heights between the microtraps.
Issue 6 (28 March 2007)
Received 31 October 2006, in final form 22 December 2006
Published 5 March 2007
Saeed Ghanbari et al 2007 J. Phys. B: At. Mol. Opt. Phys. 40 1283
Xiaoming Wen et al 2007 New J. Phys. 9 337
J M Peek et al 2007 J. Phys. B: At. Mol. Opt. Phys. 40 565
Jes K. Jørgensen and Ewine F. van Dishoeck 2010 ApJ 710 L72
David L Wiltshire 2007 New J. Phys. 9 377
Stephen E. Healey et al. 2008 ApJS 175 97
Tsung-Chin Hou et al 2007 Nanotechnology 18 315501
A N Dobrynin et al 2007 New J. Phys. 9 258
G Grinstein and R Linsker 2007 J. Phys. A: Math. Theor. 40 9717
S J Goetz et al 2007 Environ. Res. Lett. 2 045031