<?xml version="1.0" encoding="utf-8"?>
<export-example>
  <doc>
    <id>598</id>
    <completedYear>1992</completedYear>
    <publishedYear>1992</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>165</pageFirst>
    <pageLast>176</pageLast>
    <pageNumber/>
    <edition/>
    <issue>1</issue>
    <volume>173</volume>
    <type>article</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>2014-07-15</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Real Time Approach to Relaxation and Dephasing Processes in Semiconductors</title>
    <abstract language="eng">Starting from the kinetic equations for the nonequilibrium Green's functions, a practical method is proposed which allows to solve the set of equations for the two-time propagators numerically. In contrast to the usual semiconductor Bloch equations with phenomenological damping relaxation and dephasing processes are treated microscopically for the case of coupling to a bath of LO-phonons. Beside a standard approximation for the treatment of LO-phonon scattering, no further approximations are performed. For the low-density limit we compare exact results with approximate treatments, as the Marcovian and non-Marcovian approximations resulting from a density matrix approach. First results concerning nonlinear optical properties are presented.</abstract>
    <parentTitle language="eng">Physica Status Solidi (B)</parentTitle>
    <identifier type="urn">urn:nbn:de:0298-opus4-5980</identifier>
    <enrichment key="PeerReviewed">Keine Angabe - No details</enrichment>
    <enrichment key="LinkProfileA">https://www.srh-berlin.de/hochschule/hochschulteam/hartmann-michael/</enrichment>
    <author>Michael Hartmann</author>
    <author>Wilfried Schäfer</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Physics</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Real time approach</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Semiconductors</value>
    </subject>
    <collection role="jel" number="Y">Miscellaneous Categories</collection>
    <thesisPublisher>SRH Berlin University of Applied Sciences</thesisPublisher>
    <file>https://opus4.kobv.de/opus4-srh/files/598/Real_Time_Approach.pdf</file>
  </doc>
</export-example>
