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Generalized chiral transformation in quantum electrodynamics

Обобщенное киральное преобразование в квантовой электродинамике

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Il Nuovo Cimento A (1965-1970)

Summary

On the basis of the physical meaning of chirality, the chiral transformation of the spinor field is generalized so that it is accompanied by the dual transformation of electromagnetic-field strength. Under familiar gauge conditions only the longitudinal and timelike components of the electromagnetic potential are left invariant. The axial-vector current, which is related with the generator of the transformation in the usual way and conserved for the free electromagnetic field, can be defined in the language of the Lagrangian formalism.

Riassunto

Sulla base del significato fisico della chiralità si generalizza la transformazione chirale del campo spinorale in modo che sia accompagnata dalla trasformazione duale della forza del campo elettromagnetico. Rispetto alle consuete condizioni di gauge solo le componenti longitudinali e di tipo tempo del potenziale restano invarianti. La corrente assiale vettoriale, che è correlata al generatore della trasformazione nel modo usuale e conservata per un campo elettromagnetico libero, può essere definita nel linguaggio del formalismo lagrangiano.

Резюме

На основе физического смысла киральности обобщается киральное преобразование спинорного поля, причем указанное киральное преобразование сопровождается дуальным преобразованием интенсивности электромагнитного поля. При аналогичных условиях калибровки только продольные и времениподобные компоненты электромагнитного потенциала остаются инвариантными. Аксиальйны векторный ток, который связан с генератором преобразования обычным образом и сохраняется для свободного электромагнитного поля, может быть определен в рамках Лагранжева формализма.

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Okabayashi, T. Generalized chiral transformation in quantum electrodynamics. Nuov Cim A 80, 27–34 (1984). https://doi.org/10.1007/BF02786213

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  • DOI: https://doi.org/10.1007/BF02786213

PACS 11.10

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