Is is right to say that the two dirac cones are described by two bi-spinors of different chirality?...(adsbygoogle = window.adsbygoogle || []).push({});

Is it right to say that each of the dirac cones contains quasi-particles of different helicity (electrons of positive elicity and of holes negative elicity for one dirac cone and the opposit for the other) if we consider holes as "quasiparticles of negative energy" (so not changing sign to the momentum)?...

I find books quite confusing on this point...

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# Two dirac cones are described by two bi-spinors of different chirality

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