共查询到19条相似文献,搜索用时 78 毫秒
1.
介观耗散LC并联电路的量子效应 总被引:10,自引:1,他引:9
对介观耗散LC并联电路作阻尼谐振子处理,将其量子化。在此基础上,研究了Fock态及压缩真空态下,介观耗散LC并联电路中各支路电流和电压的量子涨落。结果表明,各支路电流电压的量子涨落均与电路器件的固有参数及所选量子态有关。 相似文献
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介观串并联RLC电路的量子涨落 总被引:4,自引:0,他引:4
借鉴阻尼谐振子的量子力学处理的研究思想,将介观RLC串并联电路量子化.在此基础上,研究了真空态下各支路电流和电压的量子涨落.结果表明,各支路电流电压的量子涨落均与电路器件的参数有关,且随时间衰减. 相似文献
3.
介观互感耦合阻尼并联双谐振电路的量子涨落 总被引:5,自引:1,他引:4
对介观互感耦合阻尼并联电路作双模耦合阻尼谐振子处理,将其量子化.通过三次幺正变换,将体系的哈密顿量对角化.在此基础上给出了体系的本征能谱,研究了Fock态、真空态下各回路电流和电压的量子涨落. 相似文献
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在将介观无损耗传输线量子化的基础上, 研究了真空态和压缩真空态下传输线中电流和电流梯度的量子涨落. 着重分析了传输线与一般LC电路量子涨落的差异.
关键词:
介观无损耗传输线
真空态
压缩真空态
量子涨落 相似文献
6.
利用热场动力学的方法研究了介观RLC电路在具有热噪声的真空态下电荷和磁通(电流)的量子涨落.从而得到了有限温度下这一电路在热真空态下的量子涨落与温度的关系.结果表明,介观RLC电路的量子涨落不仅与电路中的元件参量和电路的共振频率ω有关,而且与温度T有关.温度越高,介观RLC电路的量子噪声越大
关键词:
介观RLC电路
热真空态
量子涨落 相似文献
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压缩真空态下介观耦合电路的量子涨落及电源对量子涨落的影响 总被引:18,自引:0,他引:18
通过对无耗耦合含源介观电路的量子化和哈密顿量的对角化,求出了耦合电路的能谱,研究了压缩真空态下介观电路中电荷、电流的量子涨落和电源对量子涨落的影响。 相似文献
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介观二阶电路量子涨落的对偶性 总被引:1,自引:1,他引:0
讨论了阻尼对介观耗散电路中电荷和电流量子涨落的影响,在能量本征态下比较了介观RLC串、并联电路中电荷和电流的量子涨落,发现它们之间具有对偶性。 相似文献
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介观RLC电路中电荷和电流的量子涨落 总被引:6,自引:0,他引:6
发展了一种将有源RLC电路量子化的方法,在此基础上,研究了真空态下介观RLC电路中电荷、电流的量子涨落,特别是研究了电阻对量子涨落的影响. 相似文献
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非耗散介观含源电路的量子力学效应 总被引:4,自引:1,他引:3
本文对非耗散介观含源电路的量子力学效应进行了详细研究.导出了非耗散介观含源电路在压缩真空态下其电荷和电流的量子零点涨落,并得到了该电路在绝对零度时的量子噪音. 相似文献
11.
Quantum Fluctuations of Current and Voltage for Mesoscopic Quartz Piezoelectric Crystal at Finite Temperature 下载免费PDF全文
The mesoscopic quartz piezoelectric crystal equivalent circuit is quantized by the method of damped harmonic oscillator quantization. It is shown that the quantum fluctuations of voltage and current of each loop are related to not only the equivalent circuit inherent parameter and squeezing parameter, but also the temperature, and decay according to exponent along with time in the thermal vacuum state, the thermal coherent state and the thermal squeezed state. 相似文献
12.
The mesoscopic quartz piezoelectric crystal equivalent circuit is quantized by the method of damped harmonic oscillator quantization. It is shown that, when each branch is in the thermal vacuum states, the quantum fluctuations of the voltage, and current of each loop relate with not only the equivalent circuit inherent parameter, but also the temperature and decay according to exponent along with time. 相似文献
13.
Xiu-Xia Wang 《International Journal of Theoretical Physics》2014,53(9):3164-3172
Using the IWOP technique, Wigner function theory and TFD theory, the quantization of a mesoscopic biological cell equivalent circuit is proposed, The quantum fluctuations of the mesoscopic biological cell are researched in thermal vacuum state and vacuum state. It is shown that the IWOP technique, Wigner function theory and Umezawa-Takahashi’s TFD theory play the key role in quantizing a mesoscopic biological cell at finite temperature and the fluctuations and uncertainty increase with increasing temperature and decrease with prolonged time. 相似文献
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The authors studied the properties of piezoelectric quartz resonators of DT cut in the form of rectangular plates with a width-to-length ratio of 0.4. They determined how the resonance frequency, its temperature dependence, the parameters of the electric equivalent circuit and the oscillation spectrum depend on the geometric dimensions and orientation of the crystal unit. 相似文献
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介观LC电路中电压、电流的量子涨落 总被引:53,自引:5,他引:48
从有源LC回路运动方程出发,通过引入正则变量、量子化有源LC电路,研究了真空态、压缩真空态下介观LC电路中电压、电流的量子涨落,并着重研究了压缩角对涨落的影响。 相似文献
17.
Bao-Long Liang Ji-Suo Wang Shi-Xue Song Xiang-Guo Meng 《International Journal of Theoretical Physics》2010,49(8):1768-1774
A new method of quantizing the mesoscopic RLC circuit is proposed, i.e., such a circuit can be equivalent to a changing mass
simple harmonic oscillator. By virtue of the thermal entangled state representation and the generalized Hellmann-Feynman Theorem,
the thermal effect for the system is investigated. 相似文献
18.
Quantum Effects of Mesoscopic RLC Circuit in Squeezed Vacuum State 总被引:10,自引:0,他引:10
Starting from the equation of motion of anactive RLC circuit, the quantum effects of charge andcurrent in the mesoscopic circuit (RLC circuit) in thesqueezed vacuum state are investigated. 相似文献