What mesoscopic structures really "remember": Insufficiency of the open boundary approximation

Irena Knezevic, David K. Ferry

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


We analyze the influence of contact electrons on quantum transport in a resonant-tunneling diode (RTD), using a many-body density matrix formalism for open systems. We explicitly relate the net current in the RTD to the memory-containing effective interaction between the RTD active region and the contacts. This effect can only be captured if the RTD active region is treated fully as a dynamically open system.

Original languageEnglish (US)
Pages (from-to)367-370
Number of pages4
JournalSuperlattices and Microstructures
Issue number3-6
StatePublished - Sep 2003


  • Open system
  • Quantum transport
  • Resonant-tunneling diode

ASJC Scopus subject areas

  • General Materials Science
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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