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目前量子
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  current quantum
     Expatiates on the procreant background of quantum computation and quantum computer,analyses and demonstrates the foundation principle and the characteristic of the quantum computer,puts forward the difficulty of the current quantum computer and points out the solution to difficulty.
     阐述了量子计算及量子计算机产生的背景,分析了量子计算机的基本原理和特征,提出了目前量子计算的困难并探讨了克服的途径。
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  “目前量子”译为未确定词的双语例句
     This work includes the major contents just as follows:1 、 The background and quantum remote sensing needs and the current status of the development of quantum information technology are studied.
     1.本文研究了量子遥感提出的背景和需求以及目前量子信息技术的发展现状。
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     The needs of practical applications development is the most pressing needs of quantum remote sensing.
     实际应用的需要是目前量子遥感发展最迫切的需求。
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     Quantum key distribution protocol makes use of single photon of quanta-randomicity to achieve unconditioned security key distribution, especially which is the realism significance of research way in quantum information at present.
     量子密钥分配(QKD)协议利用单光子固有的量子随机性实现具有无条件安全性的密钥分配,是目前量子信息领域中特别具有现实意义的研究方向。
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     Quantum teleportation plays an important role in the field of quantum information.
     量子隐形传态是目前量子信息中人们关注的热门课题之一,它是量子信息理论的重要组成部分,也是量子计算的基础。
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     A comprehensive review is presented about the present development of QSDC, with typical QSDC schemes based on various quantum principles as well as the comparisons between them. Then the experimental research on QSDC is reviewed briefly and the future direction is prospected in the end.
     综述了目前量子明文直传通信的发展情况和最新成果,介绍了基于各种量子原理的典型量子直接通信方案,并对各方案进行分析比较,接着简要介绍了量子明文直传通信的实验研究情况,最后对将来的研究方向进行了总结和展望。
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  相似匹配句对
     X.
     目前X.
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     C.
     目前,C.
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     Quantum control theory
     量子控制论
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     QUANTUM KEY DISTRIBUTION
     量子密码术
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     At present, there are lots of physical techniques utilized to realize quantum computation.
     目前,关于量子计算的物理实现有许多方法。
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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 puts forward some new views of the generally accepted axioms in guantum mechanics of non-rlativity: if the probabilistic interpretation is considered to be one of the basic principles, then many widely used wave functions will not be the strict physical states; The kinetic energy, potential energy, total energy and every mechanical quantity are random variables; this fact contradicts the known results——“the theory of the eigenvalue of energy”, “the kinetic energy is a positive operater”,“the tunnel...

This paper puts forward some new views of the generally accepted axioms in guantum mechanics of non-rlativity: if the probabilistic interpretation is considered to be one of the basic principles, then many widely used wave functions will not be the strict physical states; The kinetic energy, potential energy, total energy and every mechanical quantity are random variables; this fact contradicts the known results——“the theory of the eigenvalue of energy”, “the kinetic energy is a positive operater”,“the tunnel effect”and so on. If the postulate that” in the energy eigenstate the energy equals the eigenvalve”is considered to be the basic postulate in quantum mechanics, then”the probabilistic interpretation”and“the uncertainty relation”must be revised. In a word, the authors consider that there exists the logical contradiction in the present foundation of quantum mechanics, and the foundation of quantum mechanics should be further deliberated and studied.

本文对于公认的非相对论量子力学公理提出了一些新的看法:若承认几率解释是量子力学的基本原理之一,则许多有广泛应用的波函数必须取消物理态的资格;动能、势能、总能量以及任何力学量都是随机变量;这与“能量本征值理论”,“动能是正算子”,“隧道效应”等传统的结论相抵触。若坚持“能量在本征态中取本征值”的量子力学基本假设,则必须修改几率解释和不确定关系。总之,作者认为目前的量子力学基础存在着逻辑矛盾,它需要进一步推敲和研究。

To clarify the primary process of photosynthesis, a seires of model compounds, in which tetraphenylporphyrin and nitrobenzenes with one or two nitro groups are respectively connected with N-substituted amide chain, were synthesized and their photophysical properties were investigated.

光合作用原初过程中所存在的快速电子转移一般认为是电子由激发志单线态叶绿素(Donor)向醌分子(Acccptor)转移,近年来以卟啉和醌分子共价相连的分子体系摸拟原初过程的电子转移过程的研究非常活跃。虽然这类体系目前量子产率还很低,但是已为我们展示了这一模型体系的合理性。本文所报导是一种新型的电子给体和电子受体共价相连的体系即卟啉和硝基苯共价相连的分子体系。本文简述了该系列化合物的合成方法,详见文献[5]。着重讨论了它们的光物理行为包括吸收光谱,静志荧光光谱及毫微秒荧光光谱,及激发态寿命。所得结论是:这类化合物中在光幅射下存在着由激发志卟啉向硝基苯进行电子转移的过程,其规律几乎与卟啉—醌体系是一致的。但值得注意的是卟啉与硝基苯的相对构象对该过程有明显的影响。这种影响给我们的启示是:在以共价相连的电子给体和电子受体的分子体系设计中不但要考虑电子给体和电子受体间相对距离,共价链的种类,同时应考虑它们之间的相对取向,而后者往往被人们忽视。

Optical dispersion can be classified into medium dispersion,waveguide dispersion and intermodel dispersion which have different physical mechanism.This paper will only discuss the classical theory explanation of medium dispersion in order to suplement the discription in the elementary books on optics.The classical theory had successfully explained the optical medium dispersion phenomenon. Main results of the classical electronic theory is still good approximate to that of quantum theory even though up to now...

Optical dispersion can be classified into medium dispersion,waveguide dispersion and intermodel dispersion which have different physical mechanism.This paper will only discuss the classical theory explanation of medium dispersion in order to suplement the discription in the elementary books on optics.The classical theory had successfully explained the optical medium dispersion phenomenon. Main results of the classical electronic theory is still good approximate to that of quantum theory even though up to now quantum theory has been developed and consummated very well. Terefore, classical electronic theory still play an important role in the fundamental optics education as it has simple and explicit physics picture.

光的色散分为三种:即介质色散,波导色散和模式色散。这几种色散的物理机制是不同的。本文仅针对一些现行基础光学教材阐述介质色散的不足或不明之处,讨论介质色散的经典理论解释。经典理论曾比较成功地解释了光的介质色散现象,在目前量子理论已经相当成熟的情况下,它的某些结果仍然是量子理论的极好近似。鉴于经典电子论的图象比较简明,使其在基础光学教学中仍然占有相当重要的地位。

 
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