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Chinese Physics Letters

Quantum Fluctuations of a Mesoscopic Capacitance Coupled Circuit with Power Source

Zhang Shou, Yongfang Zhao, Jing Xiao-gong, Zhengnan Qian, Su Wenhui

Published Mar 26, 2003• 3 citations
Publisher

Abstract

Starting from classical equations of motion of the charges, we obtain the quantum fluctuations of the charges, and the currents of a mesoscopic capacitance coupled circuit with power source by using a canonical transformation and a unitary transformation. The uncertainty relations between charges and conjugate currents do not satisfy the minimum uncertainty relation, and is independent of the power source.

DOI
10.1088/0256-307x/20/4/335

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