Hawking radiation and negative gravitational charge

In summary, the idea rests on the hypothesis that particles and antiparticles have gravitational charges of opposite sign, and the concept of virtual particles and antiparticles may not be applicable in this context.
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YummyFur
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YummyFur said:
http://www.physorg.com/news/2011-11-quantum-vacuum-dark.html

I was wondering if virtual anti particles had a postulated anti gravitational charge if that would be inconsistent with Hawking radiation as virtual anti particles would always be ejected from the vicinity of the Schwarzschild radius whereas virtual particles may or may not be ejected depending on the direction of their momentum.
There is a fundamental problem with your question, which is this: the "particle / anti-particle" explanation of Hawking Radiation is not an actual description of what happens. It is a heuristic posited by Hawking himself, who described it as being simply the best he could come up with to explain in English something that really can only be explained in the math.
 

1. What is Hawking radiation?

Hawking radiation is a theoretical form of radiation that is predicted to be emitted by black holes. It is named after the physicist Stephen Hawking, who first proposed its existence in 1974. According to his theory, black holes emit particles due to quantum mechanical effects near the event horizon.

2. How is Hawking radiation related to negative gravitational charge?

Hawking radiation is not directly related to negative gravitational charge. Negative gravitational charge is a hypothetical concept that suggests the existence of a repulsive force that opposes the gravitational attraction of matter. Hawking radiation, on the other hand, is a phenomenon that occurs due to quantum effects near the event horizon of a black hole.

3. Is Hawking radiation proven to exist?

No, Hawking radiation has not been directly observed or proven to exist. It is a theoretical concept that is based on mathematical calculations and has not yet been experimentally verified. However, its existence is supported by various scientific theories and models.

4. Can Hawking radiation cause a black hole to shrink?

Yes, according to Hawking's theory, black holes can slowly lose mass and energy through the emission of Hawking radiation. This can cause a black hole to shrink over time, eventually leading to its complete evaporation.

5. How does Hawking radiation affect the lifespan of a black hole?

Hawking radiation has a significant impact on the lifespan of a black hole. As a black hole emits Hawking radiation, it loses mass and energy, causing it to shrink. Eventually, a black hole will lose all of its mass and dissipate completely due to Hawking radiation, leading to its ultimate death.

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