Vacuum Energy Density, or How Can Nothing Weigh Something? http://www.astro.ucla.edu/~wright/cosmo_constant.html
Conclusion In the past, we have had only upper limits on the vacuum density and philosophical arguments based on the Dicke coincidence problem and Bayesian statistics that suggested that the most likely value of the vacuum density was zero. Now we have the supernova data that suggests that the vacuum energy density is greater than zero. This result is very important if true. We need to confirm it using other techniques, such as the WMAP satellite which has observed the anisotropy of the cosmic microwave background with angular resolution and sensitivity that are sufficient to measure the vacuum energy density. CMB data combined with the measured Hubble constant do confirm the supernova data: there is a positive but small vacuum energy density. http://www.astro.ucla.edu/~wright/cosmo_constant.html My opinion. 1. The vacuum energy density ( as whole) is absolute zero: T=0K 2. The vacuum energy density can be greater than zero. / or How Can Nothing Weigh Something? / The reason of this increasing can be ` vacuum's polarization ` ==. socratus -- You received this message because you are subscribed to the Google Groups "Epistemology" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/epistemology?hl=en.
