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PT breaking and RG flows between multicritical Yang-Lee fixed points
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We study a novel class of Renormalization Group flows which connect multicritical versions of the two-dimensional Yang-Lee edge singularity described by the conformal minimal models M(2,2n+3). The absence in these models of an order parameter implies that the flows towards and between Lee-Yang edge singularities are all related to the spontaneous breaking of PT symmetry and comprise a pattern of flows in the space of PT symmetric theories consistent with the c-theorem and the counting of relevant directions. Additionally, we find that while in a part of the phase diagram the domains of unbroken and broken PT symmetry are separated by critical manifolds of class M(2,2n+3), other parts of the boundary between the two domains are not critical.
Forward citations
Cited by 2 Pith papers
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Minimal Models RG flows: non-invertible symmetries & non-perturbative description
A three-parameter NLIE family is conjectured to encode exact ground-state energies for anomaly-matched RG flows between Virasoro minimal models, generalizing known integrable cases.
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Testing the RG-flow $M(3,10)+\phi_{1,7}\to M(3,8)$ with Hamiltonian Truncation
Hamiltonian truncation with counterterms through third order supports the conjectured RG flow M(3,10)+φ_{1,7}→M(3,8), though the evidence is fit-based and not fully converged.
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