New special issue of "Scientific American" on "Cosmology"

2002-09-20 Thread Tim May
I was disappointed in the thin, banal issue of SciAm on "Time," but now there's a new special issue devoted to "The Once and Future Cosmos." It's very good, filled with excellent illustrations of models of cosmology, key experiments, and what we currently know about the structure of the cosmo

Re: MWI of relativistic QM

2002-09-20 Thread Stephen Paul King
Dear Wei, It seems to me that there is no need for a "relativistic" version of QM for the simple reason that the wave function is not taken to be a field over space-time. It exist in Hilbert space not in spacetime. One could even argue somewhat coherently that "spacetime" is derived from the

Re: MWI of relativistic QM

2002-09-20 Thread Tim May
On Friday, September 20, 2002, at 10:03 AM, Wei Dai wrote: > On Thu, Sep 05, 2002 at 12:08:39PM +0200, Bruno Marchal wrote: >> This comes from the fact that MWI is explained most of the time >> in the context of non relativistic QM (which assumes time and space). >> But this problem disappear o

MWI of relativistic QM

2002-09-20 Thread Wei Dai
On Thu, Sep 05, 2002 at 12:08:39PM +0200, Bruno Marchal wrote: > This comes from the fact that MWI is explained most of the time > in the context of non relativistic QM (which assumes time and space). > But this problem disappear once you take into account the > space time structure of relativisti

Short comments on George, Tim, Brent, Wei's posts

2002-09-20 Thread Bruno Marchal
Hi all, On George Levy's thought experiment. -cf: http://www.escribe.com/science/theory/m3991.html It is a pleasure of living a nice little star trek episode :) It could perhaps, in some yet to develop approach, help to figure out where quantum like complementarities arise. It cannot be use