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- Quantum dynamics, in particular, macroscopic quantum tunneling in Josephson junctions coupled with resonant electro-magnetic modes is studied in the paper. 研究存在电磁共振模式耦合时约瑟夫森结中的宏观量子效应。
- Friedman et al. first observed macroscopic quantum tunneling (MQT) on Mn12-Ac in 1996, the research on single molecular magnets (SMM) such as Mn12-Ac has received much attention. Friedman[1]等在测量Mn12-Ac的低温磁效应时发现量子隧穿现象以来,对类似Mn12-Ac的单分子磁体簇合物的研究引起了人们极大的兴趣,成为当前介观物理,磁学,纳米材料等学科的研究热点。
- In this article, four basic Properties of Nanometer Particle are summarized: quantum size effect, surface effect, volume effect, macroscopical quantum tunnel effect, and several ways of preparation and evaluation of nanometer particle are introduced. 摘要综述了纳米微粒的四个基本特性:量子尺寸效应、表面效应、体积效应及宏观量子隧道效应,并介绍了纳米微粒的制备方法及对纳米微粒评估的方法。
- THERMALLY ASSISTED QUANTUM TUNNELING IN ANTIFERROMAGNETIC PARTICLES AND MACROSCOPIC QUANTUM EFFECT 反铁磁粒子的热助量子隧穿和宏观量子效应
- Keywords macroscopic quantum tunneling and coherence,single-domain magnets,topological phase interference effects,spin-coherent-state path integral,instanton technique; 宏观量子相干和隧穿现象;单畴磁性颗粒;拓扑相位干涉效应;自旋相干态路径积分;瞬子方法;
- macroscopic quantum tunneling 宏观量子隧道
- A quantum tunnel transport takes .26 seconds. 通过量子通道传送只花费了26秒就到达了。
- As a macroscopic quantum system, BEC has macroscopic wave-function. Its phase is coherent and it can exhibit special macroscopic quantum phenomena. BEC作为宏观量子系统,具有宏观波函数,整个体系是相位相干的,能够表现特有的宏观量子现象。
- The system is in the state of the superposition of the two macroscopic quantum states.Thecoherent tunnelling between them leads to the energy splitting. 系统处于这两个宏观量子态的相干叠加态,它们之间由于相干隧穿导致能级的劈裂。
- The Klein paradox completely changes the character of quantum tunneling, however. 不过,克莱恩吊诡完全改变了量子穿隧的特性。
- KIEs of this reaction are also sensitive to the temperature,which means that there is obvious quantum tunneling occurred in this reaction. 这个反应对温度比较敏感,所以反应存在明显的量子隧穿现象。
- Electrons in a superconductor form Cooper pairs and thus condense into a ground state which can be described by a macroscopic quantum wavefunction. The phase of the wavefunction represents a collective movement of millions of Cooper pairs. 超导体中的电子结成库珀对;凝聚到可以用一个宏观波函数来描绘的能量基态;该波函数的位相是代表了成百万库珀对集体运动的宏观变量.
- Starting with the Quantum Age in 2018, Earth scientists begin experimenting with "quantum tunneling," which will transport living matter great distances. 故事开始于2018年的量子时代,地球的科学家开始试验量子通道,一项技术可以将活质传送到很远很远的敌方。
- A black hole is a concentration of mass great enough that the force of gravity prevents anything from escaping from it except through quantum tunneling behavior. 一个黑洞是物质浓缩到足够大的以致引力除了通过量子隧道行为之外阻止任何东西从它那里逃逸。
- But there may be no practical way to make these insulating layers much thinner, because current flow by quantum tunneling makes them progressively worse insulators. 但不能让绝缘层更薄了,因为量子穿隧电流会降低绝缘效果。
- In nonrelativistic quantum tunneling, the probability that a low-energy particle will tunnel through a high potential-energy barrier varies, but it can never be 100 percent. 在非相对论性量子穿隧中,低能量粒子穿越高位能障碍的机率不一,但不可能达到100%25。
- On the basis of biology, it deduces the relation between the high electrostatic field and the transmembrane voltage by the formula of nernst and the quantum tunneling effect. 采用平面类脂双层模型分析外加高压静电场对植物细胞跨膜电位的影响,并探讨其微观机理。
- Current flows through the device by the process of quantum tunneling: a small number of electrons manage to jump through the barrier even though they are forbidden to be in the insulator. 电子在元件中利用量子穿隧效应流动,少量的电子可穿过绝缘层的障碍到达另一边。
- It is shown that the metastate exist only in some parameter region.The decay of the metastable-state via quantum tunneling is studied and the life time is found analytically by instanton method. 通过介观自旋算符建立了体系的精确量子相位模型,利用对量子自旋的势场描述给出了在两阱中振荡的原子之间相位差为时,即亚稳态时所要满足的物理条件,并用瞬子方法计算了该亚稳态存在的寿命。
- Quantum Tunneling Creation of a Closed FRW Universe 封闭的FRW宇宙的量子隧道创生