TL;DR
This paper reviews recent research on effective actions describing the electromagnetic responses of topological materials, focusing on weakly tilted Weyl semimetals within the Standard Model Extension framework.
Contribution
It provides a specific analysis of weakly tilted Weyl semimetals' electromagnetic response as a subset of SME terms, linking microscopic structure to macroscopic behavior.
Findings
Characterization of effective actions for topological materials.
Identification of Weyl semimetals' response within SME framework.
Analysis at zero temperature with nonzero chemical potential.
Abstract
We summarize recent work dealing with the characterization of effective actions giving the electromagnetic response of some topological materials, arising from their microscopic structure. The case of weakly tilted Weyl semimetals in the limit of zero temperature, but nonzero chemical potential, is presented as a subset of a specific choice of terms in the fermionic sector of the SME.
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Taxonomy
TopicsTopological Materials and Phenomena · Cold Atom Physics and Bose-Einstein Condensates · Advanced Physical and Chemical Molecular Interactions