Band-gap renormalization in quasi-one-dimensional electron-hole systems

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1996

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Abstract

We study the band-gap renormalization (BGR) in semiconductor quantum wires. Assuming an electron-hole system in quasi-equilibrium, we employ the random-phase approximation (RPA) and beyond (e.g., local-field corrections) to calculate the electron and the hole self-energies. The plasmon-pole approximation to the static dielectric function ε(q) agrees well with the RPA result. Our results for the BGR are compared with the recent experimental measurements and other theoretical calculations.

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Journal of Physics Condensed Matter

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Institute of Physics Publishing Ltd

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Published Version (Please cite this version)

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English