On 26 Oct 2012, at 15:58, Richard Ruquist wrote:

For Hans, Topological order: from long-range entangled quantum matter to an unification of light and electrons Xiao-Gang Wen (Submitted on 4 Oct 2012) In primary school, we were told that there are four states of matter: solid, liquid, gas, and plasma. In college, we learned that there are much more then four states of matter. For example, the phenomenon of magnetization reveals the existence of ferromagnetic phases and the phenomenon of zero-viscosity reveals the existence of superfluid phases. There many more phases in our rich world, and it is amazing that those phases can be understood systematically by the symmetry breaking theory of Landau. In this paper, we will review the progress in last 20 -- 30 years, during which we discovered that there are many new phases that cannot be described Landau symmetry breaking theory. We discuss new "topological" phenomena, such as topological degeneracy, that reveal the existence of those new phases -- topologically ordered phases. Just like zero-viscosity define the superfluid order, the new "topological" phenomena define the topological order at macroscopic level. More recently, we find that, at microscopical level, topological order is due to long-range quantum entanglements, just like fermion superfluid is due to fermion-pair condensation. Long-range quantum entanglements lead to many amazing emergent phenomena, such as fractional quantum numbers, fractional/non-Abelian statistics, and protected gapless boundary excitations. We find that long-range quantum entanglements (or topological order) provide a unified origin of light and electrons: light waves are fluctuations of long-range entanglements, and fermions are defects of long-range entanglements. Long-range quantum entanglements (and the related topological order) represent a new chapter and a future direction of condensed matter physics, or even physics in general. Comments: A gentle review of topological order. 41 pages 22 figureshttp://www.technologyreview.com/view/429528/topology-the-secret-ingredient-in-th\e-latest-theory-of-everything/

`Condensed matter physics suggest that many phases can simulate each`

`other and behave like universal number, or even quantum universal`

`number (quantum topological computers). This also suggests that the`

`winner of the measure might be Everett QM. The border of the universal`

`Indra net would be a quantum indranet, if the Z logics (the material`

`hypostases) are quantum enough (which remains to be seen).`

Bruno http://iridia.ulb.ac.be/~marchal/ -- You received this message because you are subscribed to the Google Groups "Everything List" group. To post to this group, send email to everything-list@googlegroups.com. To unsubscribe from this group, send email to everything-list+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/everything-list?hl=en.