Results 91 to 100 of about 785,798 (358)
Advanced Functional Materials, EarlyView.A spin group (SG)‐based mechanism is proposed to realize a single pair of Weyl points. PT‐symmetric nodal lines (NLs) persist under T‐breaking, protected by the combination of SG and P symmetry. When considering spin‐orbit coupling, the SG‐protected NL will split into Weyl points, which will also induce anomalous transport phenomena arising from ...
Shifeng Qian +6 more
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Realization of chiral symmetry breaking and restoration in holographic QCD [PDF]
, 2015 With proper profiles of the scalar potential and the dilaton field, for the first time, the spontaneous chiral symmetry breaking in the vacuum and its restoration at finite temperature are correctly realized in the holographic QCD framework.
Kaddour Chelabi +4 more
semanticscholar +1 more source
, 2022 In this paper (i) is given a new representation for gamma matrices in which is confirmed theoretically the absence of positive helicity neutrino and respectively negative helicity antineutrino, (ii) is proved the equivalence of Dirac equation for mass m with Proca equation for mass 2m, and (iii) is proposed a discrete symmetry group for weak and strong
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Fractional Skyrmion Tubes in Chiral‐Interfaced 3D Magnetic Nanowires
Advanced Functional Materials, EarlyView.In chiral 3D helical magnetic nanowires, the coupling between the geometric and magnetic chirality provides a way to create topological spin states like vortex tubes. Here, it is demonstrated how the breaking of this coupling in interfaced 3D nanowires of opposite chirality leads to even more complex topological spin states, such as fractional ...
John Fullerton +11 more
wiley +1 more source
Packing of Helices: Is Chirality the Highest Crystallographic Symmetry?
Crystals, 2016 Chiral structures resulting from the packing of helices are common in biological and synthetic materials. Herein, we analyze the noncentrosymmetry (NCS) in such systems using crystallographic considerations.
Romain Gautier, Kenneth R. Poeppelmeier
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Introduction to Chiral Symmetry
, 1995 These lectures are an attempt to a pedagogical introduction into the elementary concepts of chiral symmetry in nuclear physics. Effective chiral models such as the linear and nonlinear sigma model will be discussed as well as the essential ideas of chiral perturbation theory.
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Introduction to chiral symmetry in QCD [PDF]
EPJ Web of Conferences, 2017 The main aspects of chiral symmetry in QCD are presented. The necessity of its spontaneous breakdown is explained. Some low-energy theorems are reviewed. The role of chiral effective Lagrangians in the formulation and realization of chiral perturbation theory is emphasized. The consequences of the presence of anomalies are sketched.
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Lattice fermions and chiral symmetry [PDF]
Nuclear Physics B - Proceedings Supplements, 1997 3 pages, LateX, uses espcrc2.sty (attached), Talk presented at LATTICE96(chiral gauge)
H. Banerjee, Asit K. De
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Advanced Functional Materials, EarlyView.This research investigates an electro‐active chiral optical response (EACOR)‐driven dual‐channel metasurfaces with fast electrical switching rates of 52 ms, and a low operating voltage of 0.5 V. The combination of polyaniline (PANI) thin film and the exceptional topological (ET) phase of chiral gold (Au) meta‐atoms modulate holographic images through ...
Jaekyung Kim +4 more
wiley +1 more source
Flow-induced periodic chiral structures in an achiral nematic liquid crystal
Nature CommunicationsSupramolecular chirality typically originates from either chiral molecular building blocks or external chiral stimuli. Generating chirality in achiral systems in the absence of a chiral input, however, is non-trivial and necessitates spontaneous mirror ...
Qing Zhang +4 more
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