نتایج جستجو برای: axial field

تعداد نتایج: 829038  

1999
Antonio L. Maroto

We study the production of massive fermions in arbitrary vector and axial-vector classical backgrounds using effective action techniques. A perturbative calculation shows the different features of each field and in particular it is seen that pure temporal axial fields can produce particles whereas it is not possible for a pure vector background. We also analyze from a non-perturbative point of ...

1999
Antonio L. Maroto Anupam Mazumdar

We consider the resonant production of fermions from an oscillating axial background. The classical evolution of the axial field is given by that of a massive pseudovector field, as suggested by the renormalizability of the theory. We look upon both the massive and the massless fermion production from a perturbative point of view. We obtain the corresponding spectrum and angular distributions f...

2006
VICTOR NOVOZHILOV

We develop a color bosonization approach to treatment of QCD gauge field (”gluons”) at low energies in order to derive an effective color action of QCD taking into account the quark chiral anomaly in the case of SU(2) color.. We have found that there exists such a region in the chiral sector of color space, where a gauge field coincides with of chirally rotated vector field, while an induced ax...

Journal: :journal of optoelectronical nano structures 0
mohammad ghalambaz department of mechanical engineering, dezful branch, islamic azad university, dezful, iran.c research center. ali j chamkha mechanical engineering department, prince mohammad bin fahd university (pmu) p.o. box 1664 al-khobar 31952, kingdom of saudi arabia mehdi ghalambaz department of mechanical engineering, dezful branch, islamic azad university, dezful, iran.c research center. mohammad edalatifar department of electrical engineering, dezful branch, islamic azad university, dezful, iran.

the natural frequency and pull-in instability of clamped-clamped nano-actuators in the presence of a dielectric layer are analyzed. the influence of the presence of casimir force, electrostatic force, fringing field effect, axial force, stretching effects and the size effect are taken into account. the governing equation of the dynamic response of the actuator is transformed in a non-dimensiona...

Journal: :INTERNATIONAL JOURNAL OF ELECTRICAL ENGINEERING AND TECHNOLOGY 2019

Journal: :Physical review 2023

Augmentations to the Euler-Heisenberg Lagrangian (QED one-loop effective action in homogeneous electromagnetic fields) under a constant background axial gauge are examined. Two special configurations admit an exact eigendecomposition, and hence as spectral sum, of augmented Dirac operator: one with magnetic field chiral chemical potential, other electric spatial gauge, which resembles emergent ...

Journal: :Nuclear Instruments and Methods in Physics Research 1982

Journal: :Acta Physica Polonica B 2022

New approach to quantization of the relativistic Majorana field is presented. It based on expansion into eigenfunctions axial momentum -- a novel observable introduced recently. Relativistic invariance used as main guiding principle instead canonical formalism. Hidden structure quantized in form real Clifford algebra Hermitian fermionic operators unveiled. Generators Poincar\'e transformations ...

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