X-Message-Number: 20931 From: Date: Tue, 21 Jan 2003 10:08:02 EST Subject: Re: CryoNet #20917 Implicit assumptions --part1_12e.20d2680b.2b5ebc52_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit From Robert Ettinger: > > First, once more, on language: To assert that an electron here is the > "same" > as an electron there is simply to make up your own definitions of what > "sameness" means. In ordinary language, something that is elsewhere cannot > be > the "same," unless you carefully qualify this by saying "the same except > for > location, at least." One CAN distinguish between an electron here and an > electron there. Of course you are free to claim that your definition is > better, but that is just language or psychology, not physics. Two particles with the same quantum numbers values are the same, this is physics. If in an experiment analysis you find that an object is defined by a set of quantum values and starting with other element you find the same values, then physics tell you that you have found the same particle using two different track to get here. To be sure, position coordinates are included in any exhaustive set of quantum values. So if you can separate objects on their different space coordinate value, they are not the same. Even if all other quantum values are the same. What make quantum mechanics a lot special is that you can have two objects at time T0 and then entangle them so that you have one double object at time T1. If this entanglement include the space coordinate, what you have is one object at two place at the same time. This is not forbiden in classical physics, simply uncommon or not noticeable in everyday life on Earth. The euclidean space allows only 6 dimensional phase space at a point and this permit gauge symetries only up to SU(3). That is why we have nuclear matter here. If you include entangled systems at two positions, there are 12 dimensions in the phase space and gauge groups up to SU(6) are a possibility. Add more points and larger symetries enter into play. That expand enormously the thermodynamical entropy domain and may be the ultimate aging cause and nature of time arrow. Yvan Bozzonetti. --part1_12e.20d2680b.2b5ebc52_boundary Content-Type: text/html; charset="US-ASCII" [ AUTOMATICALLY SKIPPING HTML ENCODING! ] Rate This Message: http://www.cryonet.org/cgi-bin/rate.cgi?msg=20931