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1. chinaXiv:202110.00018 [pdf]

纠缠与量子力学中测量问题的“多时空”方案

胡锦文
Subjects: Physics >> General Physics: Statistical and Quantum Mechanics, Quantum Information, etc.

探讨了量子力学诠释中的哥本哈根解释以及“多世界”量子诠释,发现它们间可以有一种折中方案,即“多时空”方案,该方案认为,宇宙中时空可能并不是唯一的,任何系统间的相互作用都会形成一个独立的时空。这些系统在该时空中表现为“粒子”属性,而在其它无关的时空“看来”,这些系统则表现为“波动”属性。在“多时空”方案中,观察者的角色不必如哥本哈根解释中至关重要,而是被沦为了普通地位。同时论证了“多时空”方案下测量的客观性问题。“多时空”方案给量子力学中的测量问题提供了一个新的理解,但是它并未与当前的物理试验有所冲突,仍然居于量子力学的框架之内。

submitted time 2021-10-10 Hits351Downloads31 Comment 0

2. chinaXiv:202110.00039 [pdf]

上游不同开发情景对阿克苏河径流变化影响分析

陈硕
Subjects: Geosciences >> Hydrology

萨雷扎兹河发源于吉尔吉斯斯坦(以下称吉国),入境水量约占阿克苏河水量的44.3%,对 确保阿克苏地区经济社会的可持续发展具有重要的现实意义。近年来,吉国计划在萨雷扎兹河(阿克苏河上游)进行水资源开发,将会影响处于下游的我国境内阿克苏河流域的水资源量。基于 阿克苏河流域的径流数据,定量分析了萨雷扎兹河的径流变化特征和不同开发情景对阿克苏河下 游径流的影响。结果表明:在 1958—2015 年,萨雷扎兹河年径流整体呈显著上升趋势;径流的年内 分配差异较大,主要集中在 7、8 月;春、冬两季径流呈显著增长趋势,夏、秋两季呈微弱增长趋势;从 年代际变化看,除 1958—1959 年为偏枯水时段,1990—1999 年为偏丰水时段外,剩下的时间段均为 平水时段。吉国跨流域调水工程建设将对阿克苏河径流产生重大影响。从季节尺度分析,跨流域 调水工程建设将导致阿克苏河下游径流呈减少状态,其中夏季敏感性最高;从年尺度分析,跨流域 调水工程建设将导致阿克苏河下游径流呈减少状态,而且随着调水量的增多,阿克苏河下游径流 不断减少。研究结果可以为我国政府在处理吉国跨流域调水工程建设对阿克苏河径流产生影响 的问题上提供一定的参考。

submitted time 2021-10-10 From cooperative journals:《干旱区地理》 Hits298Downloads13 Comment 0

3. chinaXiv:202101.00003 [pdf]

On dark matter

Xian-Qiao Yu
Subjects: Physics >> The Physics of Elementary Particles and Fields

In this article, I shall propose an enlightening view on the origin of dark matter abundance, in which I introduce a neutral primordial field, which is a new field beyond the standard model. All the standard model elementary particles are produced spontaneously from this field in the Big Bang epoch of the universe and then these produced elementary particles decayed or annihilated in the well-known standard model interactions. The relic of the primordial field appears in a form of vacuum energy can not only give naturally the correct abun- dance of dark matter in the present universe, but provide a natural solution to the cosmological constant problem as well. We find that the conventional methods of detecting dark matter either fail or have great difficulties to detect the remaining vacuum energy of the primordial field, and how to confirm the existence of the remaining energy of the universe’s original energy in experiment is still an open problem.

submitted time 2021-10-08 Hits11349Downloads988 Comment 0

4. chinaXiv:202104.00128 [pdf]

On the Dynamic Effect of Infinite Redshift Surface: Lorentz Factor Analysis Method

Jiayu NI; Yuan Tu
Subjects: Physics >> Geophysics, Astronomy, and Astrophysics

The generation of infinite redshift surface is due to the singularity of the Lorentz transformation, according to this fact, analyzing the singularity of the parameters in the Lorentz transform factor, which is named the Lorentz factor analysis method in this paper, can be used to research the dynamic effect of the infinite redshift surface. In this paper, the method is applied to the Reissner-Nordstrom and Kerr-Newman black hole spacetime, which finds that the infinite redshift surface will expand and contract with the observer's radial motion, and the corresponding equations are given clearly. A new proof of the inaccessibility of the time-like singularity in a charged black hole is given, and the inaccessibility of the time-like singularity is proved only related to the electrical nature, it has nothing to do with rotation. The study result of space-like quasi-circular motion observer shows that the infinite redshift surface is consistent with that of the static observer at infinity in this case. The minimum blueshift radius which is proposed in the study of the observer who escapes at the speed of light in normal spacetime, it makes a stronger constraint on black hole parameters than traditional condition. This is a possible reason why it is difficult to form an intermediate-mass black hole, discussion about it can be found at the end of the paper.

submitted time 2021-10-04 Hits8310Downloads562 Comment 0

5. chinaXiv:202109.00068 [pdf]

Fluidic Endogenous Magnetism and Magnetic Monopole Clues from Liquid Metal Droplet Machine

Zhou, Ying-Xin; Zu, Jia-Sheng; Liu, Jing
Comment:31 Pages, 14 Figures
Subjects: Physics >> Electromagnetism, Optics, Acoustics, Heat Transfer, Classical Mechanics, and Fluid Dynamics

磁和磁单极子是物理学中的经典问题。传统磁体通常由刚性材料组成,在回答极端问题时可能面临挑战。这里,我们首次从不同于刚性磁体的导电性流体物质出发,提出通过调控液态金属机器来产生流态化内生磁性并由此构造磁单极子。基于理论解释和概念性实验证据,我们阐明了当溶液中的镓基液态金属在电驱动下发生旋转时,其内部会形成一个内生磁场,这很好地解释了两个这样分离的金属液滴能很容易融合在一起的实验现象,原因在于二者通过各自对应的N极和S极相互吸引。此外,我们还阐明了自驱动型液态金属机器也以一种内生流态化磁体出现且具有电磁同源性;当溶液中的液态镓吞食铝时,会形成一个旋转马达和在体动态变化的电荷分布,从而在内部产生内生磁性;这就解释了运动中的液态金属马达之间经常发生反射性碰撞和吸引性融合的现象,这两种现象分别是由于马达之间N极和S极的动态调整引起的。最后,我们设想可通过这种流态化内生磁体制造磁单极子,并提出了实现这一目标的四条技术路线:1. 匹配液态金属机器的内部流场;2. 基于外电场效应与磁场的叠加效应;3. 借助磁颗粒与液态金属马达之间的复合结构;4. 化学途径,如通过原电池反应。总的来说,本文理论和提供的实验证据揭示了液态金属机器作为流体型内生磁体的机制,并指出了实现磁单极的一些有希望的途径。在不久的将来,在此基础上建立一些非传统型磁电器件和应用是可能的。

submitted time 2021-09-27 Hits1366Downloads160 Comment 1

6. chinaXiv:202109.00023 [pdf]

Spectrum Broadening due to Nonselective Linear Absorption

Zhang, Xingchu ; She, Weilong
Subjects: Physics >> Electromagnetism, Optics, Acoustics, Heat Transfer, Classical Mechanics, and Fluid Dynamics

我们对纳灯近红外波段进行了发射光谱的中性吸收实验,并观察了纳灯发射光谱谱线宽度的变化。我们发现当光的强度因吸收变得很低时,这些发射光谱谱线会发生展宽现象,中性滤波片透过率越低,发射光谱的谱线展宽越明显。这是一种不同于已发现的、新的谱线展宽效应。

submitted time 2021-09-14 Hits687Downloads165 Comment 0

7. chinaXiv:202108.00098 [pdf]

On the Generalized Uncertainty Principle

Ming-Cheng Chen; Chao-Yang Lu; Jian-Wei Pan
Subjects: Physics >> General Physics: Statistical and Quantum Mechanics, Quantum Information, etc.

Generalized Uncertainty Principle (GUP), which manifests a minimal Planck length in quantum spacetime, is central in various quantum gravity theories and has been widely used to describe the Planck-scale phenomenon. Here, we propose a thought experiment based on GUP – as a quantum version of Galileo's falling bodies experiment – to show that the experimental results cannot be consistently described in quantum mechanics. This paradox arises from the interaction of two quantum systems in an interferometer, a photon and a mirror, with different effective Planck constants. Our thought experiment rules out the widely used GUP, and establishes a Quantum Coupling Principle that two physical systems of different effective Planck constants cannot be consistently coupled in quantum mechanics. Our results point new directions to quantum gravity.

submitted time 2021-08-13 Hits1763Downloads212 Comment 0

8. chinaXiv:201904.00075 [pdf]

A Possible Modified Dispersion Relation

胡锦文
Subjects: Physics >> Geophysics, Astronomy, and Astrophysics

本文引入了一个参量n来表征不同惯性系间光速的变化。为了满足众所周知的基本原理,又不违背一些可靠的实验结果,我们应该对n施加一些必要的约束。首先,重要的是,n的引入应该符合以下三个原则:(1)我们可以用一个规定的时钟同步来定义整个空间中的时间;(2)时间是均匀的,空间是各向同性的;(3)所有的惯性系统都是等价的,这是对狭义相对论(SR)思想的继承。在n的一些约束条件下,我们构造了一个满足惯性系对称性的一般坐标变换。近年来,许多理论都表现出对超高能量尺度下洛伦兹不变性的破坏的兴趣,例如量子引力,它暗示粒子的能量有一个有限值(称为普朗克能量),而不是从洛伦兹模型导出的无限值。因此我们构造一个n的表达式来描述洛伦兹模型的违逆。进一步,通过与著名的彩虹模型比较,我们发现本文推导的“最大能量”与彩虹模型假设的“最大能量”有一定的关系。

submitted time 2021-06-26 Hits27215Downloads1162 Comment 0

9. chinaXiv:202106.00104 [pdf]

自对偶地图上伊辛模型的相变临界点

张孝伍
Subjects: Physics >> General Physics: Statistical and Quantum Mechanics, Quantum Information, etc.

给定连通地图M=(V,E,F) ,在每个节点v 处赋于一个自旋,每条边上的两个节点有相互作用, 得到地图M 上的伊辛模型.由伊辛模型的对偶变换,给出了自对偶地图上伊辛模型相变临界点K* 的上下界:0.2406≤K*≤0.7218 ,并且得到三维自对偶伊辛模型的相变临界点:K*=0.5269

submitted time 2021-06-22 Hits5495Downloads321 Comment 0

10. chinaXiv:202105.00063 [pdf]

本源司南:高效利用量子资源的量子操作系统

孔伟成; 王俊超; 韩永健; 吴玉椿; 张 昱; 窦猛汉; 方 圆; 郭国平
Subjects: Physics >> General Physics: Statistical and Quantum Mechanics, Quantum Information, etc.

随着超导等量子处理器技术的不断进步,高效利用量子处理器、实现量子计算机与经典计算平台的有效协作,已成为量子计算实用化发展的迫切需求。本源司南就是一种面向此需求的量子操作系统,它提供量子任务调度、量子资源管理、量子程序编译、量子比特自动化校准等服务,统一、高效地管理量子计算资源。本文提出用于本源司南的多量子处理器负载均衡、基于量子线路映射的多量子程序并行计算、基于隐式马尔科夫链的量子比特自动化校准等技术方案,通过将本源悟源等量子计算平台接入本源司南前后的数据对比:在测试4种代表性的量子线路(QFT,GHZ,DJ,BV)实验中相较于BMT算法的映射效果,经过本源司南映射后线路的保真度至少提高10%;在运行GHZ量子线路实验中,本源司南提供的单量子处理器并行计算与多量子处理器负载均衡计算能力使量子处理器的运行效率至少提高120%。本源司南能协同调度量子处理器(QPU)、经典计算机等计算资源,为量子计算的广泛使用提供了有效的资源管理。

submitted time 2021-05-17 Hits8808Downloads1034 Comment 0

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