没有考希视界的质量通货膨胀
Raúl Carballo-Rubio1, Francesco Di Filippo2, Stefano Liberati3
1<a href="https://ror.org/04y51qn38">CP3-Origins</a>, University of Southern Denmark, Campusvej 55, DK-5230 Odense M, Denmark.
Physical review letters
|November 15, 2024
概括
黑洞经历了质量膨胀,快速的能量积累,即使没有考希地平线. 这种现象发生在动态时空中,表明这些黑洞类型是暂时的,而不是崩的终点.
科学领域:
- 一般相对论一般相对论.
- 黑洞物理学 黑洞物理学
- 宇宙学的宇宙学是什么?
背景情况:
- 质量膨胀是一种已知的不稳定性,与静止黑洞中的考契地平线有关.
- 这种不稳定性导致不同的指数级能量积累.
研究的目的:
- 在动态黑洞几何学中研究质量膨胀.
- 在没有考奇地平线的情况下,探索能量积累的存在.
主要方法:
- 分析黑洞增长的附带条件,其中有不断变化的内部捕获地平线.
- 评估动态时空中的能量积累.
主要成果:
- 有限的大指数级能量积累发生在动态黑洞几何学中.
- 即使没有考契地平线,在物理上合理的积累条件下,质量通货膨胀也存在.
- 非永恒的质量膨胀不需要全球的时空概念.
结论:
- 没有极端内部地平线的黑洞几何形状是动态的瞬态,而不是引力崩的终点.
- 这包括克尔黑洞和超出广义相对论之外的常规黑洞.
相关概念视频
Schwarzschild Radius and Event Horizon
1.9K
No object with a finite mass can travel faster than the speed of light in a vacuum. This fact has an interesting consequence in the domain of extremely high gravitational fields.
The minimum speed required to launch a projectile from the surface of an object to which it is gravitationally bound so that it eventually escapes the object’s gravitational field is called the escape velocity. The escape velocity is independent of the mass of the object. Merging the idea of escape...
The minimum speed required to launch a projectile from the surface of an object to which it is gravitationally bound so that it eventually escapes the object’s gravitational field is called the escape velocity. The escape velocity is independent of the mass of the object. Merging the idea of escape...
1.9K
Gravitation Between Spherically Symmetric Masses
855
The gravitational potential energy between two spherically symmetric bodies can be calculated from the masses and the distance between the bodies, assuming that the center of mass is concentrated at the respective centers of the bodies.
855
The Principle of Superposition and the Gravitational Field
1.3K
The principle of superposition applies to gravitational forces of objects that are sufficiently far apart. It states that the net gravitational force on a point object is the vector sum of the gravitational forces on it due to various objects. The principle helps calculate the force by listing the individual forces and then vectorially summing them up. However, it should be noted that the principle of superposition is not always apparent. In the presence of a second force, the first force could...
1.3K
Acceleration due to Gravity on Other Planets
4.2K
The gravitational acceleration of an object near the Earth's surface is called the acceleration due to gravity. It can be measured by conducting simple experiments on Earth. However, such an experiment is impossible to conduct on the surface of other planets.
Astronomical observations are thus used to measure the acceleration due to gravity on other planets. This can be determined by observing the effect of a planet's gravity on objects close to it. The crucial factor that helps in this...
Astronomical observations are thus used to measure the acceleration due to gravity on other planets. This can be determined by observing the effect of a planet's gravity on objects close to it. The crucial factor that helps in this...
4.2K
Space-Time Curvature and the General Theory of Relativity
2.6K
In 1905, Albert Einstein published his special theory of relativity. According to this theory, no matter in the universe can attain a speed greater than the speed of light in a vacuum, which thus serves as the speed limit of the universe.
This has been verified in many experiments. However, space and time are no longer absolute. Two observers moving relative to one another do not agree on the length of objects or the passage of time. The mechanics of objects based on Newton's laws of...
This has been verified in many experiments. However, space and time are no longer absolute. Two observers moving relative to one another do not agree on the length of objects or the passage of time. The mechanics of objects based on Newton's laws of...
2.6K
Conservation of Mass in Finite Cotrol Volume
969
The principle of conservation of mass is a fundamental law in fluid mechanics and is applied using the continuity equation. We apply the concept to a finite control volume to derive the continuity equation.
A system is defined as a collection of unchanging contents, and the conservation of mass states that a system's mass is constant.
A system is defined as a collection of unchanging contents, and the conservation of mass states that a system's mass is constant.
969


