Scroll Top
19th Ave New York, NY 95822, USA

物理代写| Introduction 相对论代考

物理代写| Introduction 相对论代考

物理代写

7.1 Introduction|
General Relativity is a profoundly beautiful theory! Nevertheless, it is a physical theory and anly physical theory must stand up to experimental scrutiny. GR is no exception. However in the case of GR or any other theory of gravity there is a fundamental difficulty in designing experiments. Gravity is a weak force – it is the weakest among all the four known forces. In spite of this problem experiments have been designed to test GR but they usually require high precision and hence advanced technology. The three classical tests of GR described below came in the time frame of years to decades, even though the theoretical predictions were available almost since the inception of the theory. A more recent test proposed by Irwin Shapiro in 1964 had to wait for a few years for implementation for the radar technology to improve. The test was based on the precise measurement of radar echo delay from an inner planet. The most recent test and arguably the most advanced one, that probes GR in the strong field limit (unlike the classical tests for which the field is weak), the observation of gravitational waves, took 100 years after they were theoretically predicted.

Altogether GR has been subjected to several experimental tests and it has come out in flying colours. Apart from these experimental tests which reinforce our confidence in general relativity, we have now a modern test of SR and GR, namely, the GPS. The SR time dilation correction and the GR red-shift correction are vetted every minute in our day to day life, without which the whole GPS navigation system, which serves as a backbone of modern life, would miserably collapse [See Exercise 1]. In this chapter we describe the three classical tests that have been known for several decades and further give the calculations for Shapiro delay which is also sometimes referred to as the fourth classical test of GR. The tests as named are listed below:

  1. The deflection of light by a central mass;
  2. Perihelion shift of Mercury’s orbit;
  3. Gravitational red-shift;
  4. Shapiro delay.
    (c) The Author(s), under exclusive license to Springer Nature Switzerland AG 2022
    121
    S. Dhurandhar and S. Mitra, General Relativity and Gravitational Waves,
    UNITEXT for Physics, https://doi.org/10.1007/978-3-030-92335-8_7
    122
    7 Classical Tests of General Relativity
    The strong field test from the detection of the binary black holes has been covered in later chapters. Gravitational waves, their detection and their data analysis have been discussed in these chapters.
物理代写| Kerr Spacetime and the Rotating Black Hole 相对论代考

物理代考

7.1 简介|
广义相对论是一个非常美丽的理论!然而,它是一种物理理论,只有物理理论必须经得起实验的检验。 GR也不例外。然而,在 GR 或任何其他引力理论的情况下,设计实验存在根本性的困难。重力是一种弱力——它是所有四种已知力中最弱的。尽管存在这个问题,但已经设计了实验来测试 GR,但它们通常需要高精度,因此需要先进的技术。下面描述的三个经典的 GR 测试出现在几年到几十年的时间范围内,尽管几乎从理论开始就可以获得理论预测。 Irwin Shapiro 在 1964 年提出的一项更新的测试必须等待几年才能实施,以便雷达技术得到改进。该测试基于对内行星雷达回波延迟的精确测量。最近的测试,可以说是最先进的测试,在强场极限中探测 GR(与弱场的经典测试不同),引力波的观测,在理论上预测了 100 年后。

总的来说,GR 已经进行了多次实验测试,并且已经取得了优异的成绩。除了这些增强我们对广义相对论的信心的实验测试之外,我们现在还有一个现代的 SR 和 GR 测试,即 GPS。 SR 时间膨胀校正和 GR 红移校正在我们的日常生活中每分钟都在审查,没有它们,作为现代生活支柱的整个 GPS 导航系统将悲惨地崩溃[见练习 1]。在本章中,我们描述了几十年来已知的三个经典测试,并进一步给出了夏皮罗延迟的计算,有时也被称为 GR 的第四个经典测试。下面列出了命名的测试:

  1. 中心质量对光的偏转;
  2. 水星轨道近日点移位;
  3. 引力红移;
    4.夏皮罗延迟。
    (c) 作者,获得 Springer Nature Switzerland AG 2022 的独家许可
    121
    S. Dhurandhar 和 S. Mitra,广义相对论和引力波,
    UNITEXT 物理,https://doi.org/10.1007/978-3-030-92335-8_7
    122
    广义相对论的 7 个经典检验
    双黑洞探测的强场测试已在后面的章节中介绍。这些章节已经讨论了引力波、它们的探测和数据分析。
物理代考|Schr¨odinger Equation 量子力学代写

物理代考Gravity and Curvature of Space-Time 代写 请认准UprivateTA™. UprivateTA™为您的留学生涯保驾护航。

电磁学代考

物理代考服务:
物理Physics考试代考、留学生物理online exam代考、电磁学代考、热力学代考、相对论代考、电动力学代考、电磁学代考、分析力学代考、澳洲物理代考、北美物理考试代考、美国留学生物理final exam代考、加拿大物理midterm代考、澳洲物理online exam代考、英国物理online quiz代考等。

光学代考

光学(Optics),是物理学的分支,主要是研究光的现象、性质与应用,包括光与物质之间的相互作用、光学仪器的制作。光学通常研究红外线、紫外线及可见光的物理行为。因为光是电磁波,其它形式的电磁辐射,例如X射线、微波、电磁辐射及无线电波等等也具有类似光的特性。

大多数常见的光学现象都可以用经典电动力学理论来说明。但是,通常这全套理论很难实际应用,必需先假定简单模型。几何光学的模型最为容易使用。

相对论代考

上至高压线,下至发电机,只要用到电的地方就有相对论效应存在!相对论是关于时空和引力的理论,主要由爱因斯坦创立,相对论的提出给物理学带来了革命性的变化,被誉为现代物理性最伟大的基础理论。

流体力学代考

流体力学力学的一个分支。 主要研究在各种力的作用下流体本身的状态,以及流体和固体壁面、流体流体之间、流体与其他运动形态之间的相互作用的力学分支。

随机过程代写

随机过程,是依赖于参数的一组随机变量的全体,参数通常是时间。 随机变量是随机现象的数量表现,其取值随着偶然因素的影响而改变。 例如,某商店在从时间t0到时间tK这段时间内接待顾客的人数,就是依赖于时间t的一组随机变量,即随机过程

Matlab代写

Related Posts

Leave a comment