meta user
network profile
| bio | website | |
|---|---|---|
| location | ||
| age | ||
| visits | member for | 2 years, 3 months |
| seen | May 16 at 7:25 | |
| stats | profile views | 16 |
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May 15 |
comment |
Is it possible (theoretically) to divide Black Hole into two parts? Define what you mean by "dividing" a black hole and what do you mean by "parts". Do you want to separate the matter composing the black whole in two? At what distance? |
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Feb 10 |
awarded | Yearling |
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May 31 |
answered | Why are extra dimensions necessary? |
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Mar 18 |
answered | By what mechanism do quantum effects become observable in normal life at the macroscopic level? |
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Feb 18 |
comment |
Global symmetries in quantum gravity @Lubos: I'm a bit puzzled by this. How do you know that you can trust a semiclassical calculation all the way to the end of the black hole evaporation? Wouldn't it be possible that in a truly quantum gravity description the black hole actually "knows" that it contains some nonzero $B$ and that at the end of evaporation you get it back? |
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Feb 15 |
comment |
What is “localisation” of instantons? Thanks Lubos, perfect answer! Now I just need to find the time to read those papers... |
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Feb 15 |
accepted | What is “localisation” of instantons? |
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Feb 15 |
asked | What is “localisation” of instantons? |
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Feb 10 |
awarded | Teacher |
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Feb 10 |
awarded | Scholar |
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Feb 10 |
accepted | What is wall crossing? |
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Feb 10 |
accepted | Global symmetries in quantum gravity |
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Feb 10 |
comment |
Global symmetries in quantum gravity Yes, it's something along these lines that I was looking for, but can you be maybe a bit more precise? |
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Feb 10 |
comment |
How do alpha and beta particles ionise surrounding particles? @ Jaydon: The energy transferred to the electron comes from the kinetic energy of the ionising particle. The fact that the two can interact come from the fact that they both interact electromagnetically, regardless of the sign of their charge. Notice that in radioactive decay you can also have gamma particles (high energy photons) which aren't charged, but also interact electromagnetically and thus can ionise the medium. |
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Feb 10 |
answered | How do alpha and beta particles ionise surrounding particles? |
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Feb 10 |
awarded | Supporter |
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Feb 10 |
asked | Global symmetries in quantum gravity |
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Feb 10 |
awarded | Student |
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Feb 10 |
asked | What is wall crossing? |
