Кiральна асиметрiя в релятивiстськiй матерiї у зовнiшньому магнiтному полi

Автор(и)

  • E. V. Gorbar Department of Physics, Taras Shevchenko National University of Kyiv, Bogolyubov Institute for Theoretical Physics, Nat. Acad. of Sci. of Ukraine

Ключові слова:

dense relativistic matter, magnetic field, axial current

Анотація

Розглянуто кiральну асиметрiю нормального основного стану релятивiстської матерiї у зовнiшньому магнiтному полi в Намбу–Йона-Лазiнiо моделi з локальною чотирьох фермiонною взаємодiєю i квантовiй електродинамiцi. Показано, що параметр кiрального зсуву, який пов’язаний з вiдносним
зсувом поздовжних iмпульсiв (направлених вздовж магнiтного поля) в законах дисперсiї фермiонiв протилежних кiральностей динамiчно генерується в нормальному основному станi системи. Цей внесок має мiсце для фермiонiв на всiх рiвнях Ландау, включаючи тi, що знаходяться поблизу поверхнi Фермi, i дає внесок у бездисипативний аксiальний струм, що має мiсце в релятивiстськiй матерiї у зовнiшньому магнiтному полi. Кiральна асиметрiя нормального основного стану в квантовоелектродинамiчнiй матерiї у зовнiшньому магнiтному полi характеризується додатковою кiральною структурою. Вона формально виглядає як кiральний хiмiчний потенцiал, однак є непарною функцiєю поздовжної компоненти iмпульсу, яка направлена вздовж магнiтного поля. Причина появи цiєї кiральної структури, яка зберiгає парнiсть, прямо пов’язана з далекодiючим характером квантовоелектродинамiчної взаємодiї. Обчислено лiдируючi радiацiйнi поправки для кiрального ефекту роздiлення в квантовiй електродинамiцi i визначено форму поверхнi Фермi в слабкому магнiтному полi.

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Опубліковано

2019-12-09

Як цитувати

Gorbar, E. V. (2019). Кiральна асиметрiя в релятивiстськiй матерiї у зовнiшньому магнiтному полi. Український фізичний журнал, 11(1), 3. вилучено із https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2019656

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