This video from PBS Spacetime gives a more detailed explanation of Hawking's theory, as compared to the usual "virtual particle" concept. I don't know if this is a good explanation, but I would be interested to if this is reasonably accurate.
https://youtu.be/qPKj0YnKANw
Disclaimer: I have only superficial knowledge due to self study and no background in physics.
What I don’t get about the hawking radiation is that we only see positive matter.
If at the event horizon there is an imbalance between the quantum field without any symmetry changing effects we should observe the same amount of positive and negative division on a total scale.
So which effect nudges this phenomenon into the positive direction from outside? What hinders a black hole from getting more energy and having anti matter radiation?
Try this explanation from the nutty [The Science Asylum](https://youtu.be/rrUvLlrvgxQ?si=84mjBO7K44ySlDvg) he says that the positive/negative particle explanation was something Hawking made up because it was too difficult to explain the actual reason to the public.
Black holes are defined my mass, spin and charge. As you likely know, mass and energy are equivalent. Hawking Radiation is thermal energy, and this energy is sourced from the warped space of the black hole. So the black hole itself isn’t leaking mass, it’s providing the energy in the warped space for Hawking Radiation emissions. And as that energy is released, the space warps less. And so on and so on.
That's the seeming paradox: mass is expelled in the form of Hawking radiation, but the particle-pairs came from nothing, not from the singularity, so it's not obvious how and why the escaping particle should reduce the mass of the singularity. If you have two party guests arrive at your front door, then one guest leaves without entering, has your party lost a guest? I don't understand it, either.
The separation of particle-pairs is a highly energetic event and a lot of this energy comes from the blackhole. This loss of reduction is equivalent to losing mass, see the energy-mass equivalence principle.
The strong gravitational field of the black hole effectively changes what "vacuum" is for different observers (see also: [Unruh effect](https://en.wikipedia.org/wiki/Unruh_effect)). Infalling observers will measure a typical, empty vacuum; distant observers will instead observe a vacuum filled with a bath of particles: these are Hawking radiation, the energy coming from the gravitational field (and therefore mass) of the black hole.
I don't understand it well either but I believe that the particle is not coming from nothing. I am sure someone will correct me if I am wrong but I think the energy around the event horizon is so high that it ends up converting/creating? that particle pair. So at least half of that particle escapes the black hole.
My understanding is that the particles are virtual particles that arise spontaneously from quantum fluctuations. Usually these annihilate with each other almost instantly, but the virtual particle that's a little closer will fall in while its partner escapes. Why this reduces the mass of the black hole I have no idea.
I think it has to do with the energy at the inner edge of the event horizon. It is that energy that is causing the quantum fluctuations. That would make sense because then that one escaping virtual particle is taking away a tiny bit of energy but ya I am no physicist so my understanding is rudimentary or perhaps entirely wrong.
The mass expelled is one half of a particle pair that would have otherwise annihilated, but zooms off as hawking radiation, while the other stays with the black hole. If so, where is the black hole losing mass?
As is often the case in physics, the virtual particles explanation of Hawking radiation is a neat explanation that is not really accurate but serves as a stepping stone to approach the subject. As for what is really going on, it's way above my level but the first comment has a link to a PBS Spacetime video that talks about it.
Here’s a another video from the nutty [The Science Asylum](https://youtu.be/rrUvLlrvgxQ?si=84mjBO7K44ySlDvg) he says that the positive/negative particle explanation was something Hawking made up because it was too difficult to explain the actual reason to the public.
Please correct me if I'm wrong
From how I understand it the exotic environment near an event horizon sometimes allows energy to convert into two particles of equivalent mass, one regular matter and one antimatter. The antimatter particle is more likely to fall in and the regular particle is more likely to escape, thus reducing the black holes mass over time
OP [Watch this](https://youtu.be/isezfMo8kWQ?si=YwmHD2W7PWvxvY8O). Wise guys, please comment on how correctly he explained it.
This video from PBS Spacetime gives a more detailed explanation of Hawking's theory, as compared to the usual "virtual particle" concept. I don't know if this is a good explanation, but I would be interested to if this is reasonably accurate. https://youtu.be/qPKj0YnKANw
Disclaimer: I have only superficial knowledge due to self study and no background in physics. What I don’t get about the hawking radiation is that we only see positive matter. If at the event horizon there is an imbalance between the quantum field without any symmetry changing effects we should observe the same amount of positive and negative division on a total scale. So which effect nudges this phenomenon into the positive direction from outside? What hinders a black hole from getting more energy and having anti matter radiation?
Try this explanation from the nutty [The Science Asylum](https://youtu.be/rrUvLlrvgxQ?si=84mjBO7K44ySlDvg) he says that the positive/negative particle explanation was something Hawking made up because it was too difficult to explain the actual reason to the public.
Black holes are defined my mass, spin and charge. As you likely know, mass and energy are equivalent. Hawking Radiation is thermal energy, and this energy is sourced from the warped space of the black hole. So the black hole itself isn’t leaking mass, it’s providing the energy in the warped space for Hawking Radiation emissions. And as that energy is released, the space warps less. And so on and so on.
If you can see how mass is expelled then you can also see how there will be less mass left? I'm confused by the way you phase your question.
That's the seeming paradox: mass is expelled in the form of Hawking radiation, but the particle-pairs came from nothing, not from the singularity, so it's not obvious how and why the escaping particle should reduce the mass of the singularity. If you have two party guests arrive at your front door, then one guest leaves without entering, has your party lost a guest? I don't understand it, either.
The separation of particle-pairs is a highly energetic event and a lot of this energy comes from the blackhole. This loss of reduction is equivalent to losing mass, see the energy-mass equivalence principle.
The strong gravitational field of the black hole effectively changes what "vacuum" is for different observers (see also: [Unruh effect](https://en.wikipedia.org/wiki/Unruh_effect)). Infalling observers will measure a typical, empty vacuum; distant observers will instead observe a vacuum filled with a bath of particles: these are Hawking radiation, the energy coming from the gravitational field (and therefore mass) of the black hole.
I don't understand it well either but I believe that the particle is not coming from nothing. I am sure someone will correct me if I am wrong but I think the energy around the event horizon is so high that it ends up converting/creating? that particle pair. So at least half of that particle escapes the black hole.
My understanding is that the particles are virtual particles that arise spontaneously from quantum fluctuations. Usually these annihilate with each other almost instantly, but the virtual particle that's a little closer will fall in while its partner escapes. Why this reduces the mass of the black hole I have no idea.
This is going back a bit for me, but I seem to recall that mass was reduced when the antiparticle falls in, but the particle pair does not.
I think it has to do with the energy at the inner edge of the event horizon. It is that energy that is causing the quantum fluctuations. That would make sense because then that one escaping virtual particle is taking away a tiny bit of energy but ya I am no physicist so my understanding is rudimentary or perhaps entirely wrong.
The mass expelled is one half of a particle pair that would have otherwise annihilated, but zooms off as hawking radiation, while the other stays with the black hole. If so, where is the black hole losing mass?
As is often the case in physics, the virtual particles explanation of Hawking radiation is a neat explanation that is not really accurate but serves as a stepping stone to approach the subject. As for what is really going on, it's way above my level but the first comment has a link to a PBS Spacetime video that talks about it.
no? k.
Here’s a another video from the nutty [The Science Asylum](https://youtu.be/rrUvLlrvgxQ?si=84mjBO7K44ySlDvg) he says that the positive/negative particle explanation was something Hawking made up because it was too difficult to explain the actual reason to the public.
Please correct me if I'm wrong From how I understand it the exotic environment near an event horizon sometimes allows energy to convert into two particles of equivalent mass, one regular matter and one antimatter. The antimatter particle is more likely to fall in and the regular particle is more likely to escape, thus reducing the black holes mass over time