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物理学报  2003 

Nanoelectromechanics in a quantum wire irradiated by a THz electromagnetic field
太赫兹电磁场照射下量子线中的纳米电子力

Keywords: quantum wires,THz electromagnetic field,nanoelectromechanics
量子线,
,THz电磁场,,纳米电子力

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Abstract:

We study the nanoelectromechanics in a quantum wire connecting two reservoirs irradiated under an external terahertz (THz) electromagnetic field. Using the free-electron model at ballistic regime we calculated the two-level electron wavefunction and the Rabi oscillation of electron probability between the two levels. Using a statistical operator we calculated the nanoelectronic force in the wire. The result consists of two terms, which corresponds to the case with or without external field. The term without field parameter is consistent with the existing experimental observation and theoretical calculation, and the other term from the external field can be explained by the quantum coherent theory.

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