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Quantum phase transition between a topological and a trivial semimetal from holography

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arxiv 1511.05505 v3 pith:54ITXYCM submitted 2015-11-17 hep-th cond-mat.str-el

Karl Landsteiner , Yan Liu , Ya-Wen Sun This is my paper · ORCID
classification hep-thcond-mat.str-el
keywords semimetalphasetime-reversaltopologicaltrivialbreakingflowholographic
verification ladder T0 review T1 audit T2 compute T3 formal
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We present a holographic model of a topological Weyl semimetal. A key ingredient is a time-reversal breaking parameter and a mass deformation. Upon varying the ratio of mass to time-reversal breaking parameter the model undergoes a quantum phase transition from a topologically nontrivial semimetal to a trivial one. The topological nontrivial semimetal is characterised by the presence of an anomalous Hall effect. The results can be interpreted in terms of the holographic renormalization group (RG) flow leading to restoration of time-reversal at the end point of the RG flow in the trivial phase.

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Cited by 4 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Out-of-bounds hydrodynamics in holographic anisotropic Dirac semimetals

    hep-th 2025-07 conditional novelty 6.0 of 10

    A backreacted holographic model of an anisotropic Dirac semimetal gives η/s below the KSS bound in the quantum critical region, with low-temperature scaling η/s ~ T^0.56 tied to a Lifshitz dynamical exponent z ≈ 1.9.

  2. Conductivities and excitations of a holographic flavour brane Weyl semimetal

    hep-th 2024-12 conditional novelty 6.0 of 10

    AC conductivities of the D3/D7 holographic Weyl semimetal show peaks and troughs near the WSM-insulator transition, traced to quasinormal-mode poles with small imaginary parts.

  3. Holographic Timelike Entanglement Entropy in Non-relativistic Theories

    hep-th 2024-11 conditional novelty 6.0 of 10

    The complex timelike entanglement entropy is computed in non-relativistic holographic theories, with a logarithmic real part and a constant imaginary part proposed as Fermi-surface signatures.

  4. Diagnosing Critical Behavior in AdS Einstein-Maxwell-Scalar Theory via Holographic Entanglement Measures

    hep-th 2025-12 conditional novelty 4.0 of 10

    In the EMS holographic model, entanglement entropy, mutual information, wedge cross-section, and butterfly velocity all show critical exponent 1—twice the scalar order parameter—and MI grows faster than EWCS across th...

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