Topological phases of Matter: Interesting and Useful
by
Steven Simon(University of Oxford & NIU Maynooth)
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Europe/Stockholm
122:026
122:026
Description
In two dimensional topological phases of matter, processes
depend on gross topology rather than detailed geometry. Thinking in
2+1 dimensions, particle world lines can be interpreted as knots or
links, and the amplitude for certain processes becomes a topological
invariant of that link. While sounding rather exotic, we believe that
such phases of matter not only exist, but have actually been observed
in quantum Hall experiments, and could provide a uniquely practical
route to building a quantum computer. Possibilities have also been
proposed for creating similar physics in systems ranging from
superfluid helium to strontium ruthenate to spin systems to cold
atoms.
