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71.
A new entangled state | eta ;theta rangle is proposed by the technique of integral within an ordered product. A generalized Hadamard transformation is derived by virtue of | eta ;theta rangle , which plays a role of Hadamard transformation for (hat a_1 sin theta - hat a_2 cos theta ) and (hat a_1 cos theta + hat a_2 sin theta ). 相似文献
72.
New approach for analysing master equations of generalized phase diffusion models in the entangled state representation
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By virtue of the well-behaved properties of the bipartite entangled
states representation, this paper analyse and solves some master
equations for generalized phase diffusion models, which seems
concise and effective. This method can also be applied to solve
other master equations. 相似文献
73.
Quantum fluctuations of mesoscopic damped double resonance RLC circuit with mutual capacitance--inductance coupling in thermal excitation state 总被引:7,自引:0,他引:7
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Based on the scheme of damped harmonic oscillator quantization and
thermo-field dynamics (TFD), the quantization of mesoscopic damped
double resonance RLC circuit with mutual capacitance--inductance
coupling is proposed. The quantum fluctuations of charge and current
of each loop in a
squeezed vacuum state are studied in the thermal excitation case. It is shown
that the fluctuations not only depend on circuit inherent parameters,
but also rely on excitation quantum number and squeezing parameter.
Moreover, due to the finite environmental temperature and
damped resistance, the fluctuations increase with the temperature rising,
and decay with time. 相似文献
74.
This paper constructs the new common eigenvectors of n intermediate coordinate-momentum operators which are complete and orthonormal. The intermediate coordinate-momentum representation of a multi-particles system is proposed and applied to a generaln-mode quantum harmonic oscillators system with coordinate-momentum coupling. 相似文献
75.
76.
Based on the generalized Weyl quantization scheme, which relies on the generalized Wigner operator Ok (p, q) with a real k parameter and can unify the P-Q, Q-P, and Weyl ordering of operators in k = 1, - 1,0, respectively, we find the mutual transformations between 6 (p - P) (q - Q), (q - Q) 3 (p - P), and (p, q), which are, respectively, the integration kernels of the P-Q, Q-P, and generalized Weyl quantization schemes. The mutual transformations provide us with a new approach to deriving the Wigner function of quantum states. The - and - ordered forms of (p, q) are also derived, which helps us to put the operators into their - and - ordering, respectively. 相似文献
77.
78.
一种流动单元自动分层新方法及其应用 总被引:1,自引:0,他引:1
探讨了利用测井等定量资料进行流动单元自动分层的方法。根据岩心分析和测井资料,基于流动单元内部均质的思想,利用流动带指数、储层品质因子等参数,提出了一种新的对储层自动细分的切片合并法,并分析了该方法的合理性和石油地质意义?利用该方法叮同时得到流动单元划分和识别结果,在大庆油田的应用结果证明了该方法是有效的。 相似文献
79.
介绍了小波分析的基本概念和二进小波的分解及重构算法,探讨了测井信号的频谱特征。研究结果表明,利用小波变换技术可以对测井进行频谱分析,并与标准频谱进行对比,确定出系数,然后再重构测井曲线,从而达到提高曲线纵向分辨率的然研究区两个区块近300口井的应用结果表明,该方法可以有效地提高测井曲线的纵向分辨率,为储层的精细评价提供测井资料。 相似文献