RELATIVISTIC CALCULATION OF WAVELENGTHS AND E1 OSCILLATOR STRENGTHS IN Li-LIKE MULTICHARGED IONS AND GAUGE INVARIANCE PRINCIPLE

Автор(и)

  • O. Khetselius
  • A. Mykhailov

DOI:

https://doi.org/10.18524/0235-2435.2020.29.225624

Ключові слова:

relativistic theory, radiative transitions, gauge invariance principle, lithium-like ions

Анотація

Спектральні довжини хвиль і сили осциляторів для переходів 1s22s (2S1/2) → 1s23p (2P1/2)  в Li-подібних багатозарядних іонах з зарядом ядра Z = 28,30 обчислені на основі комбінованого релятивістського енергетичнго підходу і релятивістської багаточастинкової теорії збурень з дірак-кон-шемівським одночастинковим наближенням нульового порядку і умовою дотримання принципу калібровочно' інваріантності в радіаційних переходах. Проведено порівняння отриманих результатів з наявними теоретичними і експериментальними даними. Важливий момент пов'язаний з акуратним урахуванням внесків складних багаточасткових обмінних кореляційних (поляризаційних) ефектів і з використанням оптимізованого одноквазічастічного уявлення в нульовому наближенні релятивістської багаточастинкової теорії збурень, що визначає певну згоду теорії та експерименту.

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2021-02-26

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