On Thu, Feb 21, 2019 at 8:27 AM <[email protected]> wrote: *> Other than gravity, the remaining known forces are moderated, or shall > we say "caused by" particles. Doesn't GR remain an exception; that is, > wouldn't it preclude the existence of a graviton? TIA, AG *
3 of the 4 fundamental forces of nature are explained by Quantum Mechanics and all 3 are moderated by particles; General Relativity alone deals with gravity, so far at least Quantum Mechanics has proved itself useless there and we can't even get these 2 very successful theories to talk to each other much less merge. If space and time are quantized then the graviton could exist but due to its elusive nature even if it does exist it is quite likely nobody will ever be able to detect a graviton. As far as I know the first person to point this out was Freeman Dyson in a brilliant talk he gave in 2014 (on his 90th birthday!!) and shows that something like LIGO could never detect one and other methods have little chance either: Freeman Dyson: Is a Graviton Detectable? <https://www.youtube.com/watch?v=l-FSFtoeagc> In rebuttal to Dyson some say graviton might be datatable in theory but not in practice: Can Gravitons Be Detected? <https://arxiv.org/pdf/gr-qc/0601043.pdf> John K Clark > -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/d/optout.
