Results 41 to 50 of about 110,027 (233)
Weyl fermions in a non-abelian gauge background and trace anomalies
Journal of High Energy Physics, 2019 We study the trace and chiral anomalies of Weyl fermions in a non-abelian gauge background in four dimensions. Using a Pauli-Villars regularization we identify the trace anomaly, proving that it can be cast in a gauge invariant form, even in the presence
Fiorenza Bastianelli, Matteo Broccoli
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Chiral anomaly induces superconducting baryon crystal
Journal of High Energy Physics, 2022 It was previously shown within chiral perturbation theory that the ground state of QCD in a sufficiently large magnetic field and at nonvanishing, but not too large, baryon chemical potential is a so-called chiral soliton lattice.
Geraint W. Evans, Andreas Schmitt
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The chiral anomaly in real space
, 2016 The chiral anomaly is based on a non-conserved chiral charge and can happen in Dirac fermion systems under the influence of external electromagnetic fields.
Fleckenstein, Christoph +2 more
core +1 more source
Can axial U(1) anomaly disappear at high temperature?
EPJ Web of Conferences, 2018 In our recent study of two-flavor lattice QCD using chiral fermions, we find strong suppression of axial U(1) anomaly above the critical temperature of chiral phase transition.
Fukaya Hidenori
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Chiral Anomaly Calculation in the Extended Coupled Rarita-Schwinger Mode [PDF]
Phys. Rev. D 99, 095037 (2019), 2019 We recalculate the chiral anomaly in the Abelian gauge model in which a spin-$\frac{1}{2}$ field is directly coupled to a Rarita-Schwinger spin-$\frac{3}{2}$ field, using the extended theory in which there is an exact fermionic gauge invariance. Since the standard gauge fixing and ghost analysis applies to this theory, the ghost contribution to the ...
arxiv +1 more source
Conformal Interactions Between Matter and Higher‐Spin (Super)Fields
Fortschritte der Physik, Volume 71, Issue 1, January 2023., 2023 Abstract In even spacetime dimensions, the interacting bosonic conformal higher‐spin (CHS) theory can be realised as an induced action. The main ingredient in this definition is the model S[φ,h]$\mathcal {S}[\varphi ,h]$ describing a complex scalar field φ coupled to an infinite set of background CHS fields h, with S[φ,h]$\mathcal {S}[\varphi ,h ...
Sergei M. Kuzenko +2 more
wiley +1 more source
Fate of Quantum Anomalies for 1d lattice chiral fermion with a simple non-Hermitian Hamiltonian
Journal of High Energy Physics, 2023 It is generally believed that the 1+1D model for a single chiral fermion does not exist by itself alone on lattice. The obstruction to such a lattice realization is the failure to reproduce the quantum anomalies of a chiral fermion in continuum.
Wei-Qiang Chen +4 more
doaj +1 more source
Chiral Separation Effect vs. Chiral Anomaly [PDF]
arXiv, 2022 We study relation between Chiral Separation Effect (CSE) and Chiral Anomaly, and argue that CSE does not inherit the immutability of Chiral Anomaly. For QED in the leading order in electric charge, with point-splitting regularization in real-time formalism, we demontrate, in regularization-dependent way though, that CSE is an infrared (IR) effect ...
arxiv
Advanced Functional Materials, EarlyView.This work investigates the Nernst effect in the Kagome magnet ErMn6Sn6 which exhibits both topological and anomalous Nernst effects with the anomalous Nernst coefficient reaching 1.71 µV K⁻¹ at 300 K. This value surpasses that of most canted antiferromagnetic materials, making ErMn6Sn6 a promising candidate for advancing thermoelectric devices based on
Olajumoke Oluwatobiloba Emmanuel +2 more
wiley +1 more source
DMRG study of the higher-charge Schwinger model and its ’t Hooft anomaly
Journal of High Energy Physics, 2022 The charge-q Schwinger model is the (1 + 1)-dimensional quantum electrodynamics (QED) with a charge-q Dirac fermion. It has the ℤ q 1-form symmetry and also enjoys the ℤ q chiral symmetry in the chiral limit, and there is a mixed ’t Hooft anomaly between
Masazumi Honda +2 more
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