Spacetime cooks along however we describe it, from my reading of several articles the essence seems that QFT = the essence. Beyond the testing of the last 30 years is the true vacuum being overlaid by the "false vacuum" constitutes, at least, the Hubble Volume. In this way the true vacuum is (drumroll) the essence of foundation of reality. Maria Filipova had this nice (related) article earlier thus year-https://www.imperial.ac.uk/media/imperial-college/faculty-of-natural-sciences/department-of-physics/MariaFilippova.pdf
One advantage of the false vacuum being foundational is that the true vacuum may not have a single pizza in it, or if it does contain the pie(s) they may all be virtual. However, if we were virtual ourselves, then the pizza would satisfy and therefore any complaints would arise from only true vacuum observers. The true vacuum complainers may simply be thermodynamically fluctuated boltzmann brains and we should ignore them unless they're buying our pies for us? -----Original Message----- From: Lawrence Crowell <[email protected]> To: Everything List <[email protected]> Sent: Mon, Aug 30, 2021 6:03 am Subject: Re: there is no ultimate essence Virtual particles are not real. In fact off-shell particles or their mass-energies are just dummy variables of integration in the computation of Feynman diagrams. In the BCFW formalism off-shell condition can be dispensed with entirely. These integration variables are in effect removed and they signify massive gauge redundancies. LC On Sunday, August 29, 2021 at 8:40:57 AM UTC-5 [email protected] wrote: On Tue, Aug 24, 2021 at 10:23 PM spudboy100 via Everything List <[email protected]> wrote: > So, if there is no computational or physical back drop to the vacuum or false > vacuum, then what of the effects of Virtual Particle observations? I am > looking at an article astronomer article by Ethan Siegel, indicating the > reality of virtual particles. The have to initiate from somewhere, correct? No, according to the Heisenberg uncertainty principle you can sneak in under the radar of the law of conservation of mass/energy and create stuff from nothing, but only for a very short amount of time, and the larger the amount of mass/energy there is the shorter the amount of time you are allowed to violate that law. So virtual photons can pop into existence from nowhere, they can't be detected directly but they do produce changes in things that we can detect, such as in the detailed examination of the spectral lines of hydrogen, an even better example is the Casimir effect. If you place two flat uncharged mirrors close together then there can NOT be virtual photons of every wavelength in the vacuum between the mirrors as there are outside, only a wavelength equal to the distance between mirrors are allowed, or half that wavelength, or a third or a fourth etc (it's the same reason a organ pipe will not make any sound but only sounds that resonate inside the pipe). But outside of the mirrors there is no such restriction and the virtual photons can be of any wavelength. Thus there are more virtual particles in the vacuum outside the mirrors pushing them together than there are between the mirrors pushing them apart. So the mirrors will attract each other. This attractive force was predicted to exist in 1948 but it wasn't until 1997 that it was confirmed in the lab to actually exist with just the strength Casimir said it would have. If the Vacuum outside the mirror has zero energy then the space between the mirrors must contain negative energy. John K Clark See what's on my new list at Extropolis gop -- 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 view this discussion on the web visit https://groups.google.com/d/msgid/everything-list/4d04f5b7-b7ee-431b-881c-3c3208845135n%40googlegroups.com. -- 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 view this discussion on the web visit https://groups.google.com/d/msgid/everything-list/2134132919.764438.1630371629796%40mail.yahoo.com.
