Quantum fluctuation of mesoscopic distributed parameter circuits |
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Authors: | Luo Hai-Mei Liu Gang Xu Lin and Ji Ying-Hua |
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Institution: | Department of Physics, Jiangxi Normal University, Nanchang 330027, China;Key Laboratory of Optoelectronics and Telecommunication of Jiangxi Province, Nanchang 330027, China |
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Abstract: | Under the Born-von-Karmann periodic boundary condition, we propose a quantization scheme for a non-dissipative distributed parameter circuit (a uniform transmission line). Quantum fluctuations of charge and current in the vacuum state are investigated by adopting the canonical transformation and unitary transformation method. Our results indicate that in distributed parameter circuits, quantum fluctuations, which also have distributed properties, are related to both the circuit parameters and the positions and the mode of signals. |
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Keywords: | mesoscopic distributed parameter circuit quantization quantum fluctuation |
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