A quantum many-body density matrix model for sub-femtosecond transport in mesoscopic structures

Irena Knezevic, David K. Ferry

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A theoretical model for transient transport in mesoscopic structures, and the approach with numerical simulation of a resonant-tunneling diode (RTD) are discussed. A second-order master equation for the evolution of many body reduced density matrix of the active region. The master equation is derived directly from the Liouville equation for the active region+contacts, by using the partial-trace-free approach. The numerical simulation shows that incorporation of the memory terms is crucial for description of charging, discharging in the well, and obtaining the proper transient behavior.

Original languageEnglish (US)
Title of host publication2004 10th International Workshop on Computational Electronics, IEEE IWCE-10 2004, Abstracts
Pages65-66
Number of pages2
StatePublished - 2004
Event2004 10th International Workshop on Computational Electronics: The Field of Computational Electronics - Looking Back and Looking Ahead, IEEE IWCE-10 2004, Abstracts - West Lafayette, IN, United States
Duration: Oct 24 2004Oct 27 2004

Other

Other2004 10th International Workshop on Computational Electronics: The Field of Computational Electronics - Looking Back and Looking Ahead, IEEE IWCE-10 2004, Abstracts
CountryUnited States
CityWest Lafayette, IN
Period10/24/0410/27/04

Fingerprint

Liouville equation
Resonant tunneling diodes
Computer simulation
Data storage equipment

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Knezevic, I., & Ferry, D. K. (2004). A quantum many-body density matrix model for sub-femtosecond transport in mesoscopic structures. In 2004 10th International Workshop on Computational Electronics, IEEE IWCE-10 2004, Abstracts (pp. 65-66)

A quantum many-body density matrix model for sub-femtosecond transport in mesoscopic structures. / Knezevic, Irena; Ferry, David K.

2004 10th International Workshop on Computational Electronics, IEEE IWCE-10 2004, Abstracts. 2004. p. 65-66.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Knezevic, I & Ferry, DK 2004, A quantum many-body density matrix model for sub-femtosecond transport in mesoscopic structures. in 2004 10th International Workshop on Computational Electronics, IEEE IWCE-10 2004, Abstracts. pp. 65-66, 2004 10th International Workshop on Computational Electronics: The Field of Computational Electronics - Looking Back and Looking Ahead, IEEE IWCE-10 2004, Abstracts, West Lafayette, IN, United States, 10/24/04.
Knezevic I, Ferry DK. A quantum many-body density matrix model for sub-femtosecond transport in mesoscopic structures. In 2004 10th International Workshop on Computational Electronics, IEEE IWCE-10 2004, Abstracts. 2004. p. 65-66
Knezevic, Irena ; Ferry, David K. / A quantum many-body density matrix model for sub-femtosecond transport in mesoscopic structures. 2004 10th International Workshop on Computational Electronics, IEEE IWCE-10 2004, Abstracts. 2004. pp. 65-66
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