X-Message-Number: 22077 From: Date: Thu, 26 Jun 2003 10:45:10 EDT Subject: Re: CryoNet #22070 Infrared divergence --part1_17a.1ce3c675.2c2c60f6_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit From: "michaelprice" <> > any QFT text book that > discusses the infrared divergences will show that the real soft photon > number is infinite. > ... If there was an infinite time for the reaction, what I said is that, in all practical ( real physical) cases, the time is finite and so the number of photons. If you disagree, then you have lost the infinite time condition somewhere in the QFT maths jungle. >Sorry Yvan, your heuristic counter-argument amounts to no more than >a restatement of the well known fact that energy eigen states are >stationary states. No heuristic argument based on the uncertainty principle >can stand against the detailed calculations of quantum field theory, since >the latter includes the former. Once more I disagree:Quantum Field Theories are not the end of the road, SuperSymetries for example are not QFT, and here the Heisenberg's principle holds too: So it is not a subelement of QFT. It is used by them and if you think QFT disprove the uncertainty principle, the simplest solution is that you have badly digested them, sorry Michael. Yvan Bozzonetti. --part1_17a.1ce3c675.2c2c60f6_boundary Content-Type: text/html; charset="US-ASCII" [ AUTOMATICALLY SKIPPING HTML ENCODING! ] Rate This Message: http://www.cryonet.org/cgi-bin/rate.cgi?msg=22077