Vaillant, C. L. and Potvliege, R. M. and Jones, M. P. A. (2015) 'Intercombination effects in resonant energy transfer.', Physical review A., 92 (4). 042705.
We investigate the effect of intercombination transitions in excitation hopping processes such as those found in Förster resonance energy transfer. Taking strontium Rydberg states as our model system, the breakdown of LS coupling leads to weakly allowed transitions between Rydberg states of different spin quantum number. We show that the long-range interactions between two Rydberg atoms can be affected by these weakly allowed spin transitions, and the effect is greatest when there is a near degeneracy between the initial state and a state with a different spin quantum number. We also consider a case of four atoms in a spin chain and show that a spin impurity can resonantly hop along the chain. By engineering the many-body energy levels of the spin chain, the breakdown of LS coupling due to interelectronic effects in individual atoms can be mapped onto a spatial separation of the total spin and the total orbital angular momentum along the spin chain.
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|Publisher Web site:||http://dx.doi.org/10.1103/PhysRevA.92.042705|
|Publisher statement:||Reprinted with permission from the American Physical Society: Physical Review A 92, 042705 © (2015) by the American Physical Society. Readers may view, browse, and/or download material for temporary copying purposes only, provided these uses are for noncommercial personal purposes. Except as provided by law, this material may not be further reproduced, distributed, transmitted, modified, adapted, performed, displayed, published, or sold in whole or part, without prior written permission from the American Physical Society.|
|Date accepted:||16 September 2015|
|Date deposited:||20 October 2015|
|Date of first online publication:||14 October 2015|
|Date first made open access:||No date available|
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