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Journal Article

Microscopic versus mesoscopic local density of states in one- dimensional localization

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Schomerus,  H.
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

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Titov,  M.
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

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Citation

Schomerus, H., Titov, M., Brouwer, P. W., & Beenakker, C. W. J. (2002). Microscopic versus mesoscopic local density of states in one- dimensional localization. Physical Review B, 65(12): 121101. Retrieved from http://ojps.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=PRBMDO000065000012121101000001&idtype=cvips&gifs=yes.


Cite as: http://hdl.handle.net/11858/00-001M-0000-002B-37DC-3
Abstract
We calculate the probability distribution of the local density of states nu in a disordered one-dimensional conductor or single-mode waveguide, attached at one end to an electron or photon reservoir. We show that this distribution does not display a log-normal tail for small nu, but diverges instead proportional tonu(-1/2). The log-normal tail appears if nu is averaged over rapid oscillations on the scale of the wavelength. There is no such qualitative distinction between microscopic and mesoscopic densities of states if the levels are broadened by inelastic scattering or absorption, rather than by coupling to a reservoir.