Comments about "Black hole information paradox" in Wikipedia
This document contains comments about the article Black hole information paradox in Wikipedia
- The text in italics is copied from that url
- Immediate followed by some comments
In the last paragraph I explain my own opinion.
Contents
Reflection
Introduction
The article starts with the following sentence.
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The black hole information paradox is a paradox that appears when the predictions of quantum mechanics and general relativity are combined.
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A better definition is this:
The black hole information paradox is a conflict that appears when the physical description of a process with quantum mechanics and general relativity are compared.
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In the 1970s, Stephen Hawking applied the semiclassical approach of quantum field theory in curved spacetime to such systems and found that an isolated black hole would emit a form of radiation (now called Hawking radiation in his honor).
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It is very
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He also argued that the detailed form of the radiation would be independent of the initial state of the black hole, and depend only on its mass, electric charge and angular momentum.
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The initial state can never be calculated.
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The information paradox appears when one considers a process in which a black hole is formed through a physical process and then evaporates away entirely through Hawking radiation.
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The formation and evolution of a blackhole is a very complex and time consuming process. The question is the relation in a certain period how much a BH gains mass and looses mass.
The general opinion (?) is that blackholes always grow in size by merging with other blackholes or stars.
This is different with stars because they either collapse into a BH or explode in a super novae.
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1. 1. Relevant principles
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2. Black hole evaporation
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2.1 Toggle Black hole evaporation subsection
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2.2 Hawking radiation
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2.3 Page curve
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3. Popular culture
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4. Solutions
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4.1 GISR mechanism resolution to the paradox
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4.2 Small-corrections resolution to the paradox
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4.3 Fuzzball resolution to the paradox
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4.4 Strong-quantum-effects resolution to the paradox
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4.5 Soft-hair resolution to the paradox
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4.6 Information is irretrievably lost
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4.7 Other proposed resolutions
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5. Recent developments
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6. See also
Following is a list with "Comments in Wikipedia" about related subjects
Reflection 1 - Understanding the evolution of a Blackhole.
Understanding the evolution of a black hole starts with understanding the evolution of a star. My understanding is that the evolution of the BH of the center of our Galaxy followed that same path. However initially there was no BH, only a groupe of large stars which revolved maybe around each other. I expect also that something special happened, but at least some of these large stars merged to gether and formed a large stars, which collapses on his own weight, due through gravity, and becomes a blackhole.
How ever and that is important, the evolution of a BH is a physical process and has nothing to do with the concept time, special or general relativity or newtons law.
But if you want to predict what is going to happen in the future, compare different identical or slightly identical processes you must use mathematics. Starting point is to agree about a common way to measure the parameters involved, subdivided A common reference frame seems the most logical.
Reflection 2
Reflection 3
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Created: 15 October 2024
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