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cond-mat.str-el2003★ 229 cited
A Class of -Invariant Topological Phases of Interacting Electrons
Michael Freedman, Chetan Nayak, Kirill Shtengel +2
We describe a class of parity- and time-reversal-invariant topological states of matter which can arise in correlated electron systems in 2+1-dimensions. These states are character…
math-ph2003
On Freedman's lattice models for topological phases
James Brink, Zhenghan Wang
Freedman proposes a family of Hamiltonians which define quantum loop gas models on any celluated compact surface. We study the simplest nontrivial cases: celluations of t…