A reparametrization-invariant worldsheet theory of Abelian quantum Hall interfaces yields a material charge-shape constraint and a universal linear shape bracket.
Its variation must include the variation of the differential operator: δt=δ(∂ sX) = (δ∂ s)X+∂ sδX.(B11) Substituting Eqs
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An Effective String Theory Toolbox for Quantum Hall Interfaces I: Worldsheet Kinematics and Constraint Structure
A reparametrization-invariant worldsheet theory of Abelian quantum Hall interfaces yields a material charge-shape constraint and a universal linear shape bracket.