Topological order and reflection positivity
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چکیده
منابع مشابه
Topological Order and Reflection Positivity
The interplay between the two fundamental concepts of topological order and reflection positivity allows one to characterize the ground states of certain many-body Hamiltonians. We define topological order in an appropriate fashion and show that certain operators have positive expectation value in all ground states. We apply our method to vortex loops in a model relevant to topological quantum ...
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120 Czech. J. Phys. B 29 [1979] A. Uhlmann: Some remarks on reflection positivity There was given, (c), a subspace L+ of L with RP property (~ ,0~) > 0 fora l l ~ L + . Then there appeared, (d), an isometric 1-parameter group s -~ T~, To = identity, satisfying for all s 0 T f l = T-s and, for s >-0, T~L+ _ L + . We have to have two further conditions of technical character. (e) Continuity condi...
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ژورنال
عنوان ژورنال: EPL (Europhysics Letters)
سال: 2014
ISSN: 0295-5075,1286-4854
DOI: 10.1209/0295-5075/105/40002