tag:blogger.com,1999:blog-9074529824943791718.post5431668769370555711..comments2010-06-29T15:03:02.616-04:00Comments on Soul Physics: CPT: The 'Intuitive' ApproachBryanhttp://www.blogger.com/profile/07379669532781325751noreply@blogger.comBlogger8125tag:blogger.com,1999:blog-9074529824943791718.post-22720408404470137852010-06-29T15:03:02.594-04:002010-06-29T15:03:02.594-04:00Oh dear! Let's keep an <a href="http://www.sci...Oh dear! Let's keep an <a href="http://www.sciencenews.org/view/generic/id/60568/title/Neutrino_experiments_sow_seeds_of_possible_revolution" rel="nofollow">eye on this</a>.Bryanhttp://www.blogger.com/profile/07379669532781325751noreply@blogger.comtag:blogger.com,1999:blog-9074529824943791718.post-58290432570306399542010-06-29T10:23:24.085-04:002010-06-29T10:23:24.085-04:00Bryan,
there are news about CPT broken in the Neu...Bryan,<br /><br />there are news about CPT broken in the Neutrino sector..wolfganghttp://wbmh.blogspot.comnoreply@blogger.comtag:blogger.com,1999:blog-9074529824943791718.post-43480434217636019752010-06-18T03:22:08.073-04:002010-06-18T03:22:08.073-04:00>> All charges get reversed by C
you are rig...>> All charges get reversed by C<br />you are right.<br /><br />mass is the only special 'charge', but mass is obviously a special case...wolfganghttp://tsm2.blogspot.comnoreply@blogger.comtag:blogger.com,1999:blog-9074529824943791718.post-57416872261675095202010-06-17T14:35:28.813-04:002010-06-17T14:35:28.813-04:00The quantum numbers that do seem special to me are...The quantum numbers that do seem special to me are mass and spin. Both are the charges corresponding to a conserved current. But neither are reversed by C. Why?<br /><br />Interestingly, these are exactly the quantum numbers arising from the irreducible representations of the homogeneous Poincaré group. Does that have anything to do with it? I'm not sure...Bryanhttp://www.blogger.com/profile/07379669532781325751noreply@blogger.comtag:blogger.com,1999:blog-9074529824943791718.post-39534541246279314212010-06-17T12:58:48.387-04:002010-06-17T12:58:48.387-04:00Actually I think the E&M charge <em>isn't<...Actually I think the E&M charge <em>isn't</em> special. All charges get reversed by C, including color. That's why the operation is equivalent to exchanging particles with antiparticles.Bryanhttp://www.blogger.com/profile/07379669532781325751noreply@blogger.comtag:blogger.com,1999:blog-9074529824943791718.post-44459907104326364002010-06-17T11:55:15.813-04:002010-06-17T11:55:15.813-04:00I always wonder what is so special about the elect...I always wonder what is so special about the electromagnetic interaction that its charge shows up in such a fundamental operation like CPT.<br />(Why not change the coloring of quarks?)wolfganghttp://tsm2.blogspot.comnoreply@blogger.comtag:blogger.com,1999:blog-9074529824943791718.post-63089994570806655322010-06-14T22:17:20.402-04:002010-06-14T22:17:20.402-04:00Yes, it certainly helps me more than just writing ...Yes, it certainly helps me more than just writing down the <a href="http://en.wikipedia.org/wiki/Wightman_axioms#Consequences_of_the_axioms" rel="nofollow">Wightman axioms</a>.Bryanhttp://www.blogger.com/profile/07379669532781325751noreply@blogger.comtag:blogger.com,1999:blog-9074529824943791718.post-52535570882675755062010-06-14T16:28:22.560-04:002010-06-14T16:28:22.560-04:00The idea that this is a complete reversal is inter...The idea that this is a complete reversal is interesting. Perhaps that sheds some light on why CPT seems such a fundamental symmetry.Joseph Smidthttp://www.blogger.com/profile/02583891162785742138noreply@blogger.com