Results 91 to 100 of about 173,599 (260)

The Calculation of Force in Lattice Quantum Chromodynamics [PDF]

open access: yesarXiv, 2018
The calculation of force is most difficult part in lattice Quantum Chromodynamics (QCD). This lecture gives the details of the force calculation in one-loop Symanzik improved action, Wilson fermion with clover term, asqtad fermion, HISQ fermion, rooted staggered fermion, smeared fermion, staggered Wilson fermion, overlap fermion and domain wall fermion.
arxiv  

A corner reflector of graphene Dirac fermions as a phonon-scattering sensor

open access: yesNature Communications, 2019
Dirac fermion optics leverages p-n junctions and Klein tunnelling barriers present in materials to implement complex optical functions and devices, including reflectors, collimators, and Dirac fermion microscopes.
H. Graef   +12 more
doaj   +1 more source

Radiative seesaw-type mechanism of fermion masses and non-trivial quark mixing [PDF]

open access: yes, 2016
We propose a predictive inert two-Higgs doublet model, where the standard model (SM) symmetry is extended by $$S_{3}\otimes Z_{2}\otimes Z_{12}$$S3⊗Z2⊗Z12 and the field content is enlarged by extra scalar fields, charged exotic fermions and two heavy ...
C. Arbeláez   +3 more
semanticscholar   +1 more source

Te Vacancy‐Driven Anomalous Transport in ZrTe5 and HfTe5

open access: yesAdvanced Physics Research, EarlyView.
Less is more! Recent discoveries in topological quantum materials have rekindled excitement for direct observation of quantum anomalies in a condensed matter physics laboratory, which is historically intractable in particle and cosmological physics. Using atomistic modeling this study sheds light on the source of the anomalous transport properties that
Elizabeth A. Peterson   +2 more
wiley   +1 more source

Operator Homology and Cohomology in Clifford Algebras

open access: yesCubo, 2010
In recent work, the authors used canonical lowering and raising operators to define Appell systems on Clifford algebras of arbitrary signature. Appell systems can be interpreted as polynomial solutions of generalized heat equations, and in probability ...
René Schott, G. Stacey Staples
doaj  

Particle-vortex duality of two-dimensional Dirac fermion from electric-magnetic duality of three-dimensional topological insulators [PDF]

open access: yes, 2015
Particle-vortex duality is a powerful theoretical tool that has been used to study bosonic systems. Here we propose an analogous duality for Dirac fermions in 2+1 dimensions. The physics of a single Dirac cone is proposed to be described by a dual theory,
M. Metlitski, A. Vishwanath
semanticscholar   +1 more source

Axion‐Like Interactions and CFT in Topological Matter, Anomaly Sum Rules and the Faraday Effect

open access: yesAdvanced Physics Research, EarlyView.
This review investigates the connection between chiral anomalies and their manifestation in topological materials, using both perturbative methods based on ordinary quantum field theory and conformal field theory (CFT). It emphasizes the role of CFT in momentum space for parity‐odd correlation functions, and their reconstruction by the inclusion of a ...
Claudio Corianò   +4 more
wiley   +1 more source

Discrete symmetries for electroweak natural type-I seesaw mechanism

open access: yesNuclear Physics B, 2017
The naturalness of electroweak scale in the models of type-I seesaw mechanism with O(1) Yukawa couplings requires TeV scale masses for the fermion singlets.
Pratik Chattopadhyay, Ketan M. Patel
doaj   +1 more source

Four-fermion deformations of the massless Schwinger model and confinement

open access: yesJournal of High Energy Physics, 2023
We consider the massless charge-N Schwinger model and its deformation with two four-fermion operators. Without the deformations, this model exhibits chiral symmetry breaking without confinement. It is usually asserted that the massless Schwinger model is
Aleksey Cherman   +4 more
doaj   +1 more source

Unveiling the Electronic Properties and Growth Mechanisms of 2D Layered Materials on Au Foils through Scanning Tunneling Microcopy/Spectroscopy Studies

open access: yesAdvanced Physics Research, EarlyView.
This review summarizes the recent advances of controllable syntheses of 2D materials on Au substrates, including the epitaxial growth of monolayer transition metal dichalcogenides single crystals, the construction of vertical heterostructures, and the preparation of novel 2D materials.
Wenzhi Quan   +3 more
wiley   +1 more source

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