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QUANTUM FLUCTUATIONS OF A DISSIPATIVE MESOSCOPIC CAPACITANCE–RESISTANCE–INDUCTANCE COUPLED CIRCUIT

YUQIANG ZHANG

Department of Physics, Guizhou University, Guiyang 550025, China

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SHAOHONG CAI

Department of Physics, Guizhou University, Guiyang 550025, China

Guizhou College of Finance and Economics, Guiyang 550004, China

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YUEWU HAN

Teaching Department of Technology, Guizhou Radio and TV University, Guiyang 550004, China

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https://doi.org/10.1142/S021798491002313XCited by:0 (Source: Crossref)

Abstract

Starting from Kirchhoff's equation for each mesoscopic coupled circuit, we investigated the quantum fluctuations of a dissipative mesoscopic capacitance–resistance–inductance coupled circuit using canonical transformation and unitary transformation. It is shown that the quantum fluctuations of charges and currents are not only related to the parameters of components in the self-circuit and coupled part, but also influenced by the parameters of other circuit. The uncertainty relations of the charges and currents are analyzed briefly.

Keywords:

PACS: 03.65.Fd, 73.23.-b

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