Comments on: Does order underlie quantum chaos? http://futurismic.com/2008/08/11/does-order-underlie-quantum-chaos/ Presenting the fact and fiction of tomorrow since 2001 Sat, 19 May 2012 23:03:43 +0000 hourly 1 http://wordpress.org/?v=3.3.2 By: Tom Marcinko http://futurismic.com/2008/08/11/does-order-underlie-quantum-chaos/comment-page-1/#comment-15859 Tom Marcinko Tue, 12 Aug 2008 18:49:40 +0000 http://futurismic.com/?p=3770#comment-15859 That is interesting, but even in light of my admittedly limited understanding, it sounds somewhat different from what Saam is describing. Always glad to be judged younger than I am... That is interesting, but even in light of my admittedly limited understanding, it sounds somewhat different from what Saam is describing.

Always glad to be judged younger than I am…

]]> By: docduke http://futurismic.com/2008/08/11/does-order-underlie-quantum-chaos/comment-page-1/#comment-15847 docduke Tue, 12 Aug 2008 02:02:47 +0000 http://futurismic.com/?p=3770#comment-15847 Maybe the author is not old enough, or has not studied the history of quantum mechanics. When a crystal emits a photon, such as a gamma ray, the Mossbauer mode of emission has all the atoms in the crystal behaving as if they collectively emitted the photon. In contrast to the "recoil-free" behavior as described in Wikipedia (http://en.wikipedia.org/wiki/Mossbauer_effect), the actual line width can be calculated from the mass of the whole crystal, instead of the mass of a single atom. In any case it is an OLD example of coherent behavior of quantum-mechanical systems, and it is spontaneous, unlike coherent processes such as laser emission. Maybe the author is not old enough, or has not studied the history of quantum mechanics. When a crystal emits a photon, such as a gamma ray, the Mossbauer mode of emission has all the atoms in the crystal behaving as if they collectively emitted the photon. In contrast to the “recoil-free” behavior as described in Wikipedia (http://en.wikipedia.org/wiki/Mossbauer_effect), the actual line width can be calculated from the mass of the whole crystal, instead of the mass of a single atom. In any case it is an OLD example of coherent behavior of quantum-mechanical systems, and it is spontaneous, unlike coherent processes such as laser emission.

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