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Measuring topological order
Phys. Rev. Research 3, 033110 – Published 2 August, 2021
DOI: https://doi.org/10.1103/PhysRevResearch.3.033110
Abstract
The topological order of a topological phase of matter is characterized by its chiral central charge and a unitary modular tensor category that describes the universal fusion and braiding properties of its anyonic quasiparticles. I discuss the topologically invariant quantities associated with these and identify ones that are useful for determining the topological order. I propose a variety of physical experiments that probe these quantities and detail the relation of the measured data to the topological invariants.
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- There are alternative way of achieving the same desired three quasiparticle setup; for example, one could pair-create quasiparticles carrying topological charges and and , and and , and then bring together quasiparticles , and and measure their collective topological charge.