Timeline for Can the cosmological constant problem be solved by imposing that the renormalized value matches the observed value?
Current License: CC BY-SA 4.0
4 events
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| Nov 10 at 6:23 | comment | added | my2cts | Perhaps the problem is so large that we should indeed look for ways to ignore it. 🙂 | |
| Nov 9 at 16:24 | comment | added | RenatoRenatoRenato | Also you say "The exact ways in which this value is a "problem" is a matter of debate, and depends on lots of often unspoken assumptions about the nature of quantum field theories, quantum gravity and the role of renormalization" Can you expand on this, or share som sources where the assumptions are carefully described? I think it's clear at this point that I do not understand the problem itself, and a long time passed since I studied QFT, so it's not easy for me to get it | |
| Nov 9 at 16:22 | comment | added | RenatoRenatoRenato | Trying to clarify my confusion here. The first paragraph highlights a procedure to renormalize every parameter such as the cosmological constant and, say the fine structure constant. The procedure described in the second paragraph, instead, works only for the fine structure constant since it scales differently with the cutoff. So, in effective field theory the fine structure constant is corrected by a small value due to the presence of the finite cutoff, while the cosmological constant gets a huge value. | |
| Nov 9 at 12:41 | history | answered | ACuriousMind♦ | CC BY-SA 4.0 |