Chiral Symmetry Breaking for Deterministic Switching of Perpendicular Magnetization by Spin-Orbit Torque. [PDF]
Symmetry breaking is a characteristic to determine which branch of a bifurcation system follows upon crossing a critical point. Specifically, in spin-orbit torque (SOT) devices, a fundamental question arises: how can the symmetry of the perpendicular ...
Hao Wu+13 more
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Chiral Symmetry of Baryons [PDF]
We study chiral symmetry aspects of the positive and negative parity baryons by identifying them with linear representations of the chiral group $SU(N_{f}) \otimes SU(N_{f})$. It is shown that there are two distinctive schemes: naive and mirror assignments.
A. Hosaka, D. Jido, M. Oka
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Topological invariants and phase diagrams for one-dimensional two-band non-Hermitian systems without chiral symmetry [PDF]
We study topological properties of one-dimensional non-Hermitian systems without chiral symmetry and give phase diagrams characterized by topological invariants $\nu_E$ and $\nu_{total}$, associated with complex energy vorticity and summation of Berry ...
Hui Jiang, Chao Yang, Shu Chen
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Second-order topological phases protected by chiral symmetry [PDF]
We study second-order topological insulators and semimetals characterized by chiral symmetry. We investigate topological phase transitions of a model for construction of the two-dimensional second-order topological insulators protected only by chiral ...
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Symmetry-protected exceptional rings in two-dimensional correlated systems with chiral symmetry [PDF]
Emergence of exceptional points in two dimensions is one of the remarkable phenomena in non-Hermitian systems. We here elucidate the impacts of symmetry on the non-Hermitian physics.
Tsuneya Yoshida+3 more
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Chiral approximation to twisted bilayer graphene: Exact intravalley inversion symmetry, nodal structure, and implications for higher magic angles [PDF]
This paper presents a mathematical and numerical analysis of the flatband wavefunctions occurring in the chiral model of twisted bilayer graphene at the "magic" twist angles.
Jie Wang+3 more
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Topology Classification using Chiral Symmetry and Spin Correlations in Graphene Nanoribbons.
We apply the topological classification theory using chiral symmetry to graphene nanoribbons (GNRs). This approach eliminates the requirement of time-reversal and spatial symmetry in previous Z2 topology theory, resulting in a Z classification with the ...
Jingwei Jiang, S. Louie
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Anomaly constraint on massless QCD and the role of Skyrmions in chiral symmetry breaking [PDF]
A bstractWe discuss consequences of the ’t Hooft anomaly matching condition for Quantum Chromodynamics (QCD) with massless fundamental quarks. We derive the new discrete ’t Hooft anomaly of massless QCD for generic numbers of color Nc and flavor Nf , and
Y. Tanizaki
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Anomaly constraints on gapped phases with discrete chiral symmetry [PDF]
We prove that in $(3+1)d$ quantum field theories with ${\mathbb{Z}}_{N}$ symmetry, certain anomalies forbid a symmetry-preserving vacuum state with a gapped spectrum.
Clay Córdova, K. Ohmori
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Deconfinement and chiral symmetry restoration [PDF]
4 pages, 1 figure, proceedings of Quark Matter ...
A. Mocsy+3 more
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