Preparation and detection of magnetic quantum phases in optical superlattices

Details Preparation and detection of magnetic quantum phases in optical superlattices Preparation and detection of magnetic quantum phases in optical superlattices

2007-04-11

arxiv.org/abs/0704.1413v3

Phys. Rev . Lett 99, 140601 (2007)

Physics

Condensed Matter

Other Condensed Matter

5 pages, 2 Figures, reference added

Scientific paper

10.1103/PhysRevLett.99.140601

We describe a novel approach to prepare, detect and characterize magnetic quantum phases in ultra-cold spinor atoms loaded in optical superlattices. Our technique makes use of singlet-triplet spin manipulations in an array of isolated double well potentials in analogy to recently demonstrated quantum control in semiconductor quantum dots. We also discuss the many-body singlet-triplet spin dynamics arising from coherent coupling between nearest neighbor double wells and derive an effective description for such system. We use it to study the generation of complex magnetic states by adiabatic and non-equilibrium dynamics.

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