Topological superconductor
In condensed matter physics and materials chemistry, a topological superconductor is a material that conducts electricity with zero electrical resistivity, and has non-trivial topology which gives it certain unique properties. These materials behave as superconductors that feature exotic edge states, known as Majorana zero modes.[1][2]
Classification and examples
[edit | edit source]Topological superconductors are characterized by the topological order related to their electronic band structure.[2] These materials can be classified using the periodic table of topological superconductors, which categorizes topological phases based on time-reversal symmetry, particle-hole symmetry, and chiral symmetry.[2]
An example of a simple topological superconductor in one-dimension is the Kitaev chain.[2]
Experimental evidence
[edit | edit source]In 2015, uranium ditelluride (UTe2) was found to behave as a topological superconductor.[2]
Applications
[edit | edit source]A notable application of topological superconductors is in the realm of topological quantum computing, where Majorana zero modes can be used to implement fault-tolerant quantum gates via braiding operations. This approach leverages the non-Abelian statistics of Majorana modes to perform computations that are protected from local sources of decoherence.[1][2]
See also
[edit | edit source]References
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