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电流的量子
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  current quantum
     A quantization scheme for a R(t)LC mesoscopic circuit has been given,in which we employ the canonical transformation and Feynman's path integral method. The charge and generalized current quantum fluctuation of the circuit are discussed,and the uncertainty relation of charge and generalized current has also been shown.
     通过正则化变换技巧,采用费曼路径积分方法,完成了R(t) LC 介观电路的量子化工作,并研究了介观电路的电荷和广义电流的量子涨落以及两者的不确定关系
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  “电流的量子”译为未确定词的双语例句
     When the inductances in the circuit increase and the capacitances decrease exponentially with time, quantum fluctuations of the charge and current decrease exponentially with time;
     当电路中的电感随时间指数增加,而电容指数减小时,电路中的电荷和电流的量子涨落也随时间指数减小;
短句来源
     Study on the Quantum Fluctuation Properties of the Charge and the Current in Nanometer Circuit with Source
     纳米含源量子电路中电荷和电流的量子涨落特性研究
短句来源
     On the basis of the squeezed vacuum state in quantum optics, the concept of excited state for the squeezed vacuum state is presented by means of the nature of bosonic inverse operators. The quantum zero? point fluctuations both for charge and current in a mesoscopic RLC circuit are also derived.
     在量子光学压缩真空态概念的基础上,借助玻色振子逆算符的性质,提出了压缩真空态的激发态的概念,导出了介观RLC 电路在该量子态下电荷和电流的量子零点涨落,发现该涨落明显依赖于电路的元件、压缩参数以及激发态的量子数,并得到了该电路在绝对零点时的量子噪声.
短句来源
     SQUID and the quantum phase difference of Josephson tunnel current, and using Josephson fundamental equations, this paper gains the relation, between the supercurrent of D.
     SQUID中通过环路的磁通与约瑟夫逊电流的量子相位差的关系,并利用约瑟夫逊方程得到D.
短句来源
     Quantum fluctuations of charge and current in RLC circuit
     RLC电路中电荷、电流的量子涨落
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  相似匹配句对
     Effect of Scattering on Electron Tunneling in Quantum Well
     散射对量子阱隧穿电流的影响
短句来源
     The coupling inductance helps to reduce the quantum fluctuations of the electric current.
     耦合电感有助于减小电流的量子涨落 .
短句来源
     QUANTUM KEY DISTRIBUTION
     量子密码术
短句来源
     Quantum control theory
     量子控制论
短句来源
     On the Properties of Displacement Current
     位移电流的性质
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  current quantum
Contradiction between the results of observations of resistance and critical current quantum oscillations in asymmetric supercon
      
Current quantum cryptography systems are limited by the attenuated coherent pulses they use as light sources: a security loophole is opened up by the possibility of multiple-photon pulses.
      
Grover's quantum searching algorithm is most widely studied in the current quantum computation research, and has been implemented experimentally by NMR (Nuclear Magnetic Resonance) technique.
      
Using the diffusion model associated by the author with the wave equations, a part of current quantum radiation theory is reformulated so that the characteristic divergences in the associated calculations no longer arise.
      
The operatorU(t,t') giving transition probabilities between finite times or connecting free and interacting fields does not exist (apart from the ultraviolet divergence problem) because of the 3-translation invariance of current quantum field theory.
      
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This paper, starting with Josephson fundamenta equations, introduces the quantum diffraction of the tunnel current, and discusses the effect of the quantum interference of D.C.SQUID. Substituting the formule of the probability current density with the electron-pair wave function, this paper obtains the relation between the magnetic flux of the loop in D. C. SQUID and the quantum phase difference of Josephson tunnel current, and using Josephson fundamental equations, this paper gains the relation, between the...

This paper, starting with Josephson fundamenta equations, introduces the quantum diffraction of the tunnel current, and discusses the effect of the quantum interference of D.C.SQUID. Substituting the formule of the probability current density with the electron-pair wave function, this paper obtains the relation between the magnetic flux of the loop in D. C. SQUID and the quantum phase difference of Josephson tunnel current, and using Josephson fundamental equations, this paper gains the relation, between the supercurrent of D.C.SQUID and magnetic flux φ_L—quantum interference effect. Lastly, this paper expounds the basic principle of measuring the weak magnetic field by D. C. SQUID, and points out the application of Josephson effect to accurate measure.

本文首先从约瑟夫逊基本方程出发,介绍了约瑟夫逊隧道电流的量子衍射现象。进而着重讨论了D. C. SQUID的量子干涉效应,将电子对波函数代入在磁场中运动的几率流密度公式,得到在D. C. SQUID中通过环路的磁通与约瑟夫逊电流的量子相位差的关系,并利用约瑟夫逊方程得到D. C. SQUID的最大超导电流与磁通φL的关系——量子干涉效应。最后阐明了用D. C. SQUID测量弱磁场的基本原理并指出了约瑟夫逊效应在精密测量方面的应用。

In this paper,the effects of quantum mechanics in a non-dissipation mesoscopic circuit withsource are studied in detail. The quantum zero point fluctuations for both the charge and current of anon-dissipation mesoscopic circuit with source are derived under the squeezed vacuum state,and thequantum noise of this circuit at the absolute zero temperature are therefore obtained.

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.

Starting from equation of motion of an active LC circuit,the quantum fluctuations of the charge and current in the mesoscopic circuit ( LC circuit) in the squeezed vacuum state are investigated.

从有源LC回路的运动方程出发,研究了在压缩真空态下介观LC电路中电荷、电流的量子涨落.

 
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