Long-range doublon transfer in a dimer chain induced by topology and ac fields

 

Long-range doublon transfer in a dimer chain induced by topology and ac fields
M. Bello, C. Creffield and G. Platero.
Sci. Rep. 6, 22562 (2016)

Figure_1In this work we study how to induce long-range transfer of interacting particles between the two ends of a dimer chain, by coupling states that are localized just on the chain’s end-points. This has the appealing feature that the transfer occurs only between the end-points – the particle does not pass through the intermediate sites – making the transfer less susceptible to decoherence. Gate potentials and ac fields allow us to induce the the presence of topological or Shockley-like edge states. We can control the quality and speed of the transfer by tuning the different parameters of the model.

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