Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 10 of 10 for “"Chiral Anomaly"”.
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Transport in a Strongly Coupled Charged Relativistic Quantum Fluid in the Presence of a Chiral Anomaly & a Strong Magnetic Field Via Hydrodynamics & Holography
… external magnetic field, $B$. This theory has a chiral anomaly, which conspires with the magnetic field and axial charges to give rise to a host of novel transport phenomena. According to the gauge/gravity correspondence, also referred to as holography the described field theory state is dual to …
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Measurement of Pion-Pion Final State Interactions in η → π +π −γ with CLAS at Jefferson Lab
<p>Decays of pseudoscalar mesons proceed from the chiral anomaly, which arises from spontaneous chiral symmetry breaking. In the limit of massless quarks (chiral limit), the η → π +π −γ the decay width is determined solely by the box anomaly term in the Wess Zumino Witten Lagrangian. Since the …
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Transport in nanoscale systems
… The depolarization problem is linked to the chiral anomaly of 1+1 dimensional Dirac fermions. Second, coupling between a surface acoustic wave and nanotube electrons is proposed as a means to realize an adiabatic charge pump. Incompressible states are identified in the single particle …
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Vignettes in string theory : using geometry to probe the worldsheet and strongly coupled physics
… we construct hybrid linear models in which the chiral anomaly of a gauged linear sigma model is canceled by the classical anomaly of a gauged WZW model. Semi-classically, this corresponds to fibering the WZW model over the naive target space of the sigma model. When the gauge group is abelian, …
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Nonperturbative dynamics of strong interactions from gauge/gravity duality
… the Chern-Simons term required to reproduce the chiral anomaly of QCD. This allows us to find the slope of the form factor with one real and one slightly off-shell photon which appeared to be close to the experimental findings. We also analyze the limit of large virtualities (when the photon is …
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Quantum Matter in the Era of Generalized Symmetries
… Kramers-Wannier duality, which matches the anomaly of the corresponding non-invertible symmetry in the low-energy effective field theory. Finally, we explore such unusual anomaly-matching mechanisms in more detail in the context of the chiral anomaly of a single massless Dirac fermion, …
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Scanning tunneling microscopy and spectroscopy study of phase transitions and topology in layered transition metal dichalcogenides
… which hosts exotic physics like Weyl fermions, chiral anomaly, giant magnetoresistance, and topologically protected surface states known as Fermi arcs. To explore potential application for Weyl semimetals requires understanding their electronic properties. Here a detailed analysis of our …
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Topological insulators and semimetals in the presence of interactions
… WSM. In chapter 6, we study the gravitational anomaly of the Weyl and the Dirac fermions. One possible means of studying the topological phases of matter is to examine the quantum anomalies in the boundary theory, which indicates the presence of the non-trivial topology in the higher …
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Topics in Weyl geometry and quantum anomalies
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-02-04 without embargo terms
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Exploring linear and nonlinear electromagnetic responses in topological materials
… system with nested Fermi surfaces, stemming from chiral materials with strong spin-orbit coupling at high symmetry points. This widens the breadth of this thesis, not only in terms of exotic topological materials, but also in terms of electromagnetic-induced responses. In this chapter, we also …