Optical conductivity of Bose droplets in quenched disorder at T = 0: the effects of structure factor

Details Optical conductivity of Bose droplets in quenched disorder at T = 0: the effects of structure factor Optical conductivity of Bose droplets in quenched disorder at T = 0: the effects of structure factor

2006-11-28

arxiv.org/abs/cond-mat/0611711v1

Physics

Condensed Matter

Strongly Correlated Electrons

7 pages, 7 figures

Scientific paper

10.1016/j.physb.2007.03.023

The optical response of a system of two-dimensional Bose condensate droplets with an internal charge structure interacting with impurities is considered within the mode-coupling theory. It is found, that the glass transition in the system of droplets occurs at much stronger disorder as compared to the case of stuctureless point particles. The optical conductivity of the system is found to exhibit a complex oscillating structure, intimately related to the charge distribution within the droplets. The application of the model to the problem of the far IR optical conductivity of doped cuprates (in particular, La214) is discussed.

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